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Seminario Anderson Melchor Hernandez - Politecnico di Milano - 12 Giugno 2025
by Luca Scarpa 04 Jun '25

04 Jun '25

Si segnala il seguente seminario a tutti gli interessati. Giovedì 12 Giugno 2025, ore 11:00. Aula Seminari III Piano, Dipartimento di Matematica, Politecnico di Milano. Speaker: Anderson Melchor Hernandez, Università di Bologna. Title: Convergence of quantum neural networks at infinite width Abstract: Quantum neural networks constitute the quantum version of deep neural models. These new models are based on quantum circuits and generate functions given by the expectation values of a quantum observable measured on the output of a quantum circuit made by parametric one-qubit and two-qubit gates. The parameters of the circuit encode both the input data and the parameters of the model itself. These parameters are typically optimized by gradient descent, which involves iterative adjustment to minimize a cost function and improve the performance of the quantum circuit in the processing and analysis of data. Significant progress has been made in addressing the question of whether training can perfectly fit the training examples while simultaneously avoiding overfitting. A fundamental breakthrough has been the proof that, in the limit of infinite width, the probability distribution of the function generated by a deep neural network trained on a supervised learning problem converges to a Gaussian process. Recent developments have inspired renewed interest in quantum machine learning, raising the question of whether quantum neural networks exhibit analogous properties. In this presentation, I will explore some of the recent advancements in this area, highlighting key insights and findings. This talk is based on joint collaborations with Giacomo de Palma, Filippo Girardi, and Davide Pastorello. Link Zoom: https://polimi-it.zoom.us/j/95413417796?pwd=DzfocIrWXSq96LbS0fjekatHjSSyOe.1 Link Seminario Polimi: https://www.mate.polimi.it/Eventi/?id=2602&sezione_di_ricerca=&stringa=&sub… ----- Prof. Luca Scarpa, PhD Associate Professor in Probability Department of Mathematics Politecnico di Milano Via E. Bonardi 9 20133 Milano, Italy e.mail: luca.scarpa(a)polimi.it<mailto:luca.scarpa@polimi.it> url: https://sites.google.com/view/lucascarpa

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next OWPS: Makiko Sasada and Hayate Suda
by Luisa Andreis 04 Jun '25

04 Jun '25

Dear colleagues, this is a gentle reminder of today One World Probability Seminar, details below. The seminar will be held at 15:00 (italian time). You can find the calendar for the upcoming seminars at this link<https://www.owprobability.org/one-world-probability-seminar/future-seminars> (next date: June 18). We hope to see many of you online! Luisa and Roger On Wed, May 28, 2025 at 5:49 PM One World Probability <ow.probability(a)gmail.com<mailto:ow.probability@gmail.com>> wrote: The next OWPS will be on Wednesday, June 4, from 13:00 to 15:00 UTC time. Title, abstract and the zoom link are below the signature and can be found on the website https://www.owprobability.org/one-world-probability-seminar<https://protect-eu.mimecast.com/s/-zGkCWqjZFlpkVlsnEyR_?domain=eur01.safeli…>. ----------------------- Scaling limits of a tagged soliton in the randomized box-ball system Hayate Suda (Tokyo Institute of Technology) The box-ball system (BBS) is a cellular automaton that exhibits the solitonic behavior. In recent years, with the rapid progress in the study of the hydrodynamics of integrable systems, there has been a growing interest in BBS with random initial distribution. In this talk, we consider the scaling limits for a tagged soliton in the BBS starting from certain stationary distribution. This talk is based on a joint work with Stefano Olla and Makiko Sasada. Probabilistic aspects of integrable systems Makiko Sasada (University of Tokyo) The KdV equation and the Toda lattice are classical integrable systems, with the box-ball system (BBS) as their ultra-discrete analogue. The BBS has been studied from various viewpoints such as tropical geometry, combinatorics, and cellular-automaton. Recently, probabilistic approaches to the BBS—such as the Pitman transform and analysis of i.i.d.-type invariant measures—have advanced rapidly and are also applicable to discrete KdV and Toda systems. Connections to Yang-Baxter maps have further deepened this research topic. In this talk, I will provide an overview of these developments. This talk is based on joint works with David Croydon, Tsuyoshi Kato, Satoshi Tsujimoto, Ryosuke Uozumi, Hiroki Kondo and Sachiko Nakajima. https://polimi-it.zoom.us/j/92945513591?pwd=zjtRwpHoO9kRyQuPPj4o186jXrvg1v.1 Meeting ID: 92945513591 Passcode: 131676

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CLADAG 2025: extended deadlines and call for special issues
by Marta Nai Ruscone 03 Jun '25

03 Jun '25

Apologies for cross-posting ******************************** Dear all, the abstracts submission deadline (https://easychair.org/conferences/?conf=cladag2025 <https://equinocs.springernature.com/service/cladag-voc2025> ) has been extended to July 1, 2025, https://cladag2025.unina.it/call/ <https://cladag2025.unina.it/call-2/> The deadline for the PhD Student/Young Researcher Paper Award has been extended to JUNE 21, 2025 (https://cladag2025.unina.it/awards/). Moreover, we are pleased to announce that authors of papers presented at CLADAG 2025 may submit a full paper for possible publication in Special Issues of Advances in Data Analysis and Classification (ADAC) and METRON. More information on special issues topics, guest editors, opening of submissions and deadlines will be announced soon on this page <https://cladag2025.unina.it/si/> and the web pages of the respective journals. CLADAG 20205 <https://cladag2025.unina.it/> Key Dates: July 1st : Abstract submission deadline June 21, 2025: Nomination deadline for the PhD Student/Young Researcher Paper Award; July 15, 2025: Regular registration deadline. Best wishes, Antonio D'Ambrosio

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School on Machine Learning of Dynamic Processes and Time Series Analysis, Pisa, Sep 24-26
by Fabrizio Lillo 03 Jun '25

03 Jun '25

We are pleased to announce the 3rd edition of the School *Machine Learning of Dynamic Processes and Time Series Analysis* that will be held at the Scuola Normale Superiore in Pisa (Italy) on September 24-26, 2025. This edition of the School is dedicated to the mathematical and computational aspects of dynamic factor models, as well as the probabilistic modeling of time series, including change point detection methods, and random machine learning models for learning dynamic processes. The School provides minicourses delivered by six keynote speakers - *Matteo Barigozzi*, University of Bologna, *Dynamic Factor Models for High-Dimensional Time Series* - *Lukas Gonon*, University of St. Gallen, *Random neural network architectures for learning dynamic processes* - *Anastasis **Kratsios*, McMaster University, *TBA* - *Francesco Ravazzolo*, Free University of Bozen-Bolzano, *Probabilistic Forecasting of Commodity Markets* - *Mirco Rubin*, EDHEC Business School, *Latent factor models in finance: from the start till now* - *Tengyao Wang*, London School of Economics, *Timely Decisions: Sequential and High-Dimensional Changepoint Detection* For young researchers, there will also be a poster session to present their works. Detailed information on the School and instructions for application can be found at: https://mldyn2025.wordpress.com/ The application deadline is *June 30, 2025*. The organizers, Fabrizio Lillo Giulia Livieri Stefano Marmi Piero Mazzarisi Giorgio Rizzini ---------------------------------------- Fabrizio Lillo Dipartimento di Matematica, Università di Bologna Scuola Normale Superiore, Pisa ITALY Personal website: fabriziolillo.wordpress.com University website: www.unibo.it/sitoweb/fabrizio.lillo <http://fabriziolillo.wordpress.com/> phone: +39 050509159

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Research School Announcement: “Random Walks: Applications and Interactions” at CIRM — January 19–23, 2026
by Francesca Cottini 03 Jun '25

03 Jun '25

Dear all, We are pleased to announce the upcoming research school “Random Walks: Applications and Interaction”. It will take place at CIRM (Marseille) during the week of January 19–23, 2026. The program will include: - 3 mini-courses by Alessandra Faggionato* (Università La Sapienza), Irina Ignatouk-Robert (University of Cergy), and Daniel Kious (University of Bath); - 6 research talks by Amine Asselah (Université Paris-Est Créteil), Oriane Blondel (Université Claude Bernard Lyon 1), Satya Majumdar (Université Paris-Saclay), Leonardo Rolla (University of São Paulo), Perla Sousi (Cambridge), and Dalia Terhesiu (University of Leiden); - Short presentations by participants. The goal of this research school is to provide an overview of recent advances in the study of random walks and their applications, in particular in relation to potential theory, statistical mechanics, and processes with reinforcement. We wish to bring together communities from different fields to foster interdisciplinary exchange. The mini-courses and research talks will cover a wide range of topics and will be primarily aimed towards young researchers. We warmly invite interested participants to apply (pre-register) on the conference website before *September 30, 2025*: 👉 https://conferences.cirm-math.fr/3451.html Accommodation costs will likely be covered by the conference organization (subject to availability). Please feel free to share this announcement, especially among PhD students, postdoctoral researchers, and other early-career scientists in your network. Best regards, Quentin Berger, Francesca Cottini, Cécile Mailler, Kilian Raschel *to be confirmed

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Fwd: International Seminar on SDEs and Related Topics: Rainer Buckdahn June 06
by Gianmario Tessitore - UNIMIB 02 Jun '25

02 Jun '25

Diffondo volentieri Mario ---------- Forwarded message --------- Da: Stefan Geiss <geiss(a)jyu.fi> Date: lun 2 giu 2025 alle ore 07:58 Subject: Fwd: International Seminar on SDEs and Related Topics: Rainer Buckdahn June 06 To: <gianmario.tessitore(a)unimib.it> Dear Mario, we got the info for next week's talk. Best wishes Stefan ------------------------------------------------ Friday, June 06, (12:30 noon London, 1:30 pm Berlin, 2:30 pm Helsinki, 7:30 pm Beijing) in the *International Seminar on SDEs and Related Topics* in Zoom https://jyufi.zoom.us/j/61891007917 *Rainer Buckdahn* (Université de Bretagne Occidentale, Brest, France, Shandong University Qingdao, China) will speak about *Optimal control problems with generalized mean-field dynamics* *and viscosity solutions to a Master Bellman equation* Abstract: We study an optimal control problem with generalized mean-field dynamics with open-loop controls, where the coefficients depend not only on the state processes and controls, but also on the joint law of them. The value function V which is defined in a classical way, does not satisfy the Dynamic Programming Principle (DPP for short). Indeed, we show that V solely satisfies the one-sided DPP. For this reason we introduce subtly a novel value function ϑ, which is closely related to the original value function V, so that a characterisation of ϑ as a solution of a partial differential equation (PDE) also characterises V. We establish the DPP for ϑ. By using an intrinsic notion of viscosity solution, initially introduced in Burzoni, Ignazio, Reppen and Soner and specifically tailored to our framework, we show that the value function ϑ is a viscosity solution to a Master Bellman equation on a subset of the Wasserstein space of probability measures with second order moment. The uniqueness of the viscosity solution is proved for coefficients which depend on the time and the joint law of the control process and the controlled process. The talk is based on joint work with Juan Li (SDU, Qingdao and Weihai) and Zhanxin Li (SDU, Weihai). ==== about the speaker ==== Rainer Buckdahn studied Mathematics at the Friedrich Schiller University Jena (Germany) and obtained his doctoral degree, directed by H.-J. Engelbert, in 1985. After that he held a position at the Humboldt University Berlin and completed his habilitation in 1992. In 1994 he became a professor at the University of Western Brittany (Brest, France). Rainer Buckdahn is a leading specialist in stochastic process theory with an emphasis on stochastic control and differential games, stochastic differential equations, various types of backward stochastic differential equations, and stochastic partial differential equations. Rainer Buckdahn was awarded a fellowship by the French Ministry of Research and Technology and a Heisenberg grant by the German "Deutsche Forschungsgesellschaft". He is also a member of the Academic Faculty of the "Research Centre for Mathematics and Interdisciplinary Sciences Centre" at Shandong University (China). Finally, he acts as executive editor of the journal "Probability, Uncertainty and Quantitative Risk". -- Gianmario Tessitore Dipartimento di Matematica e Applicazioni Università degli Studi di Milano-Bicocca

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QFinLab Seminar - Olimpia Carradori (University of Zurich) - 5/6/2025, 12:15 @ Department of Mathematics, Politecnico di Milano
by Alessandro Calvia 30 May '25

30 May '25

Dear colleagues, you are all invited to participate in the following seminar organized by QFinLab - Department of Mathematics, Politecnico di Milano. Thursday, 5 June 2025, 12.15-13.15 Seminar room, third floor, building 14, Via Bonardi 9, Milano (Leonardo Campus) Olimpia Carradori (University of Zurich) Title: Insurers' carbon underwriting policies Abstract: Insurance companies can influence the net-zero transition by limiting coverage for carbon-intensive projects. We study the adoption, structure, and effects of carbon underwriting policies among the world’s largest insurance groups. Using novel mine-level insurance data, we show that insurers with coal policies reduce the number of insured mines by approximately 16%, insured coal volumes by 56%, and make continued coverage significantly less likely. Implementation is often incomplete, and some insurers expand coverage despite commitments. Affected mines tend to reduce output, cut the number of employees, and are more likely to be idled in subsequent periods. Joint work with Felix von Meyerinck and Zacharias Sautner. All news can be found on the QFinLab webpage<https://www.qfinlab.polimi.it/seminars-and-meetings/>. Next seminar: Marco Tolotti (Università Ca' Foscari Venezia), 9 June 12.15.

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PhD & postdoc position in biostatistics at the University of Oslo, Norway
by Valeria Vitelli 30 May '25

30 May '25

Dear colleagues, I am pleased to share that two fully funded positions in statistics are available in my group, one for a *PhD candidate* and one for a *3-years postdoc researcher*, at the Department of Biostatistics, which is part of the Oslo Centre for Biostatistics and Epidemiology <https://www.med.uio.no/imb/english/research/centres/ocbe/>, *University of Oslo* (UiO), Norway. Both positions are linked to a project recently funded by the Research Council of Norway concerning Bayesian models for unsupervised learning when multiple data sources are available, mostly tailored to the case of molecular data in cancer genomics. They will also be involved in the broader activities of my larger research group on Statistical models for high-dimensional and functional data <https://www.med.uio.no/imb/english/research/groups/statistics-high-dimensio…> *Application deadline:* 13th June 2025 *More info and how to apply* 👉 PhD position: https://www.jobbnorge.no/en/available-jobs/job/281023/phd-candidate-in-stat… Postdoc position: https://www.jobbnorge.no/en/available-jobs/job/280960/three-year-postdoc-po… I would be very grateful if you could share the vacancies with talented candidates who might be interested in the positions. Contact person / supervisor: Valeria Vitelli (valeria.vitelli(a)medisin.uio.no ) All the best, Valeria -- Valeria Vitelli Oslo Centre for Biostatistics and Epidemiology, Department of Biostatistics, University of Oslo, Norway group page: https://www.med.uio.no/imb/english/research/groups/statistics-high-dimensio… <https://www.med.uio.no/imb/english/research/groups/statistics-high-dimensio…> mailto: valeria.vitelli(a)medisin.uio.no

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cambio data - seminari a Pavia, 4 giugno
by Benedetta Ferrario 29 May '25

29 May '25

CAMBIO DATA: mercoledì 4 giugno (e non più 3 giugno) per i seguenti due seminari presso il Dipartimento di Scienze Economiche e Aziendali (aula E, piano terra) dell'Università di Pavia. *ore 13:30 *Hakima Bessaih (Florida International University) *titolo*: Dynamical systems with noisy data *abstract*: Reconstructing the state of a dynamical system from noisy observations is particularly challenging when the initial conditions are unknown. This talk focuses on synchronization-based and feedback control methods for data assimilation, which dynamically align model trajectories with observed data. Techniques such as nudging, observer-based schemes, and coupling strategies will be discussed, highlighting how they correct for uncertainty and stabilize the system in real time. Applications include chaotic systems and models governed by stochastic dynamics. *ore 14:30: *Sam Power (University of Bristol) *titolo*: Gradient Flow Methods for Statistical Computation - Trends and Trajectories *abstract*: When conducting statistical estimation and inference, it is relatively commonplace that the dominant computational burden takes the form of an optimisation task. This has long been recognised for tasks of parameter estimation, though there is an increasing recognition that other tasks of interest can be fruitfully interpreted as optimisation tasks over a space of probability measures, or even over some 'hybrid' space involving both parameters and measures. In this talk, I will survey some trends in this area, focusing on how this high-level perspective finds use in both analysis of popular existing algorithms and synthesis of novel algorithms. I will also highlight opportunities for future contributions in this fast-growing area. Tutti gli interessati sono invitati a partecipare.

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Last call: Ph D students in Probability and Statistics Meet Companies
by Cristina Zucca 29 May '25

29 May '25

Carissime/i, facendo seguito alla prima call, inviata a Marzo, confermiamo l’incontro di 3 giorni tra dottorandi in Probabilità e Statistica e rappresentanti di tre aziende: *Ph D Students in Probability and Statistics meet Companies* organizzato per i giorni 16-18 settembre 2025 dal gruppo UMI-PRISMA, dall Dipartimento di Matematica “G. Peano” dell’Università di Torino e il Dipartimento di Scienze Matematiche “J.L. Lagrange” del Politecnico di Torino.Le aziende che hanno accettato l'invito sono : Novartis, Toolgroups e Fondaco Group. Informazioni più complete sono disponibili alla pagina: https://sites.google.com/view/phd-companies/home La partecipazione al gruppo di studio/lavoro è gratuita per dottorandi e dottorande, ed eventuali post doc interessati, che stanno svolgendo o hanno svolto una tesi di probabilità e/o statistica matematica. Potremo finanziare il pernottamento di alcuni partecipanti presso le residenze universitarie e l'organizzazione comprende i pranzi per i partecipanti. Il numero di posti è limitato e si accetteranno iscrizioni fino al loro esaurimento*. * *La registrazione è obbligatoria e deve avvenire entro il 20 giugno utilizzando il form* *iscrizione* <https://docs.google.com/forms/d/e/1FAIpQLSeJnl8hdCp6UgMesAAn3rgZOHp3zj3CrqQ…> Il comitato organizzatore: Gianluca Guadagni, Franco Pellerey, Laura Lea Sacerdote, Enrico Scalas, Serena Spina, Barbara Trivellato e Cristina Zucca ------ Following the initial call sent out in March, we confirm the *three-day meeting* between PhD students in *Probability and Statistics* and representatives from three companies: *PhD Students in Probability and Statistics Meet Companies* The event will take place on *September 16–18, 2025*, and is organized by the UMI-PRISMA group, the Department of Mathematics "G. Peano" at the University of Turin, and the Department of Mathematical Sciences "J.L. Lagrange" at the Polytechnic University of Turin. The companies that have accepted the invitation are: *Novartis*, *Toolgroups*, and *Fondaco Group*. More information is available at: https://sites.google.com/view/phd-companies/home Participation in the study/work group is *free of charge* for PhD students and interested postdoctoral researchers who are currently working on, or have completed, a thesis in probability and/or mathematical statistics. We will be able to *cover accommodation costs* for some participants at university residences, and *lunches will be provided* for all attendees. The number of available spots is limited, and registrations will be accepted *until all places are filled*. *Registration is mandatory* and must be completed *by June 20* using the registration form. *iscrizione* <https://docs.google.com/forms/d/e/1FAIpQLSeJnl8hdCp6UgMesAAn3rgZOHp3zj3CrqQ…> *Organizing Committee:* Gianluca Guadagni, Franco Pellerey, Laura Lea Sacerdote, Enrico Scalas, Serena Spina, Barbara Trivellato, and Cristina Zucca ------------------------------ -- -- Prof. Cristina Zucca Department of Mathematics University of Torino Via Carlo Alberto 10 10123 Torino, Italy tel: +39-011-6702850 fax: +39-011-6702878

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[IFIP Performance 2025] Deadline Extended
by Zocca, A. (Alessandro) 29 May '25

29 May '25

Dear colleagues, We would like to inform you that the submission deadlines for the IFIP Performance 2025 conference have been extended by two weeks to allow authors additional time to prepare their contributions. Updated Deadlines: * Abstract registration: now due June 8, 2025 * Paper submission: now due June 15, 2025 We encourage you to take advantage of this extension and submit your latest research to the conference. Submission platform: https://performance2025.hotcrp.com/ Best regards, Alessandro Zocca On behalf of the IFIP Performance 2025 Organizing Committee

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OWABI@BioInference2025 - today at * 10.30am * UK time
by Massimiliano Tamborrino 29 May '25

29 May '25

Dear all, due to the conference running late, the OWABI www.warwick.ac.uk/owabi<http://www.warwick.ac.uk/owabi> seminars will start today at 10.30am UK time instead of 10am, as previously announced. The talks will be given by * Andrew Golightly (Durham University), Accelerating Bayesian inference for stochastic epidemic models using incidence data * Henrik Häggström (Chalmers University), Simulation-based inference for stochastic nonlinear mixed-effects models with applications in systems biology with abstracts reported below. The talks will be streamed on the OWABI MS Team Channel<https://teams.microsoft.com/l/team/19%3AdhZ_4e_XLNJzCXPAMzTvT6BZ5KShEETkd_w…> <https://teams.microsoft.com/l/team/19%3AdhZ_4e_XLNJzCXPAMzTvT6BZ5KShEETkd_w…> , at the link https://teams.microsoft.com/l/meetup-join/19%3adhZ_4e_XLNJzCXPAMzTvT6BZ5KSh… Meeting ID: 323 917 219 730 3 Passcode: Fk9JG3eB 1st OWABI Talk: 10.30-11am UK time Speaker: Andrew Golightly<https://www.durham.ac.uk/staff/andrew-golightly/> (Durham University) Title: Accelerating Bayesian inference for stochastic epidemic models using incidence data Abstract: This work considers the case of performing Bayesian inference for stochastic epidemic compartment models, using incomplete time course data consisting of incidence counts that are either the number of new infections or removals in time intervals of fixed length. The most natural Markov jump process representation of the model is eschewed for reasons of computational efficiency, and replaced by a stochastic differential equation representation. This is further approximated to give a tractable Gaussian process, that is, the linear noise approximation (LNA). Unless the observation model linking the LNA to data is both linear and Gaussian, the observed data likelihood remains intractable. Unlike previous approaches that use the LNA in this setting, two approaches for marginalising over the latent process are considered: a correlated pseudo-marginal method and analytic marginalisation via a Gaussian approximation of the noise model. These approaches are compared using synthetic data with the best performing method applied to real data consisting of removal incidence of Oak Processionary moth nests in Richmond Park, London. 2nd Seminar: 11-11.30am UK time Speaker: Henrik Häggström<https://research.chalmers.se/en/person/henhagg> (Chalmers University) Title: Simulation-based inference for stochastic nonlinear mixed-effects models with applications in systems biology Abstract: We propose a novel methodology for Bayesian inference in hierarchical mixed-effects models. By building on our work [1], we construct a simulation-based inference (SBI) framework that is highly scalable, where amortized approximations to the likelihood and the parameters posterior are first obtained, and these are rapidly refined for each individual dataset, to ultimately approximate the parameters posterior across many individuals. Unlike the current state-of-art SBI methods, which use neural networks, our approximations are expressed via Gaussian mixture models, leading to easily trainable, parsimonious yet expressive surrogate models of both the likelihood function and the posterior distribution. The methodology is exemplified via stochastic differential equation mixed-effects models to describe translation kinetics after mRNA transfection, however the methodology is general and can accommodate other types of stochastic and deterministic models. We compare our approximate inference with exact pseudomarginal inference and show that our methodology is fast and competitive. We are looking forward to seeing you at the next OWABI seminar(s), best, Massimiliano on the behalf of the OWABI Organisers ------ Dr. Massimiliano Tamborrino Reader (Associate Professor) and WIHEA Fellow Department of Statistics University of Warwick https://warwick.ac.uk/tamborrino

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Seminario di Sam Power - Pavia, 3 giugno 2025 ore 15
by Carlo Orrieri 28 May '25

28 May '25

Martedì 3 giugno alle ore 15 presso il Dipartimento di Scienze Economiche e Aziendali (aula E, piano terra) dell'Università di Pavia, Sam Power (University of Bristol) terrà un seminario: titolo: Gradient Flow Methods for Statistical Computation - Trends and Trajectories abstract: When conducting statistical estimation and inference, it is relatively commonplace that the dominant computational burden takes the form of an optimisation task. This has long been recognised for tasks of parameter estimation, though there is an increasing recognition that other tasks of interest can be fruitfully interpreted as optimisation tasks over a space of probability measures, or even over some 'hybrid' space involving both parameters and measures. In this talk, I will survey some trends in this area, focusing on how this high-level perspective finds use in both analysis of popular existing algorithms and synthesis of novel algorithms. I will also highlight opportunities for future contributions in this fast-growing area. Tutti gli interessati sono invitati a partecipare. Un caro saluto Carlo Orrieri

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Seminario di Giorgio Cipolloni alla Sapienza
by Faggionato, Alessandra 28 May '25

28 May '25

Buongiorno Martedi' 3 Giugno alle ore 14:00 in Sala di Consiglio Giorgio Cipolloni (University of Arizona) terra' il seguente seminario Title: Logarithmically correlated fields from non-Hermitian random matrices Abstract: We study the Brownian evolution of large non-Hermitian matrices and show that their log-determinant converges to a 2+1 dimensional Gaussian field in the Edwards-Wilkinson regularity class, i.e. logarithmically correlated for the parabolic distance. This gives a dynamical extension of the celebrated result by Rider and Virag (2006) proving that the fluctuations of the eigenvalues of Gaussian non-Hermitian matrices converge to a 2 dimensional log-correlated field. Our result, previously not known even in the Gaussian case, holds out of equilibrium for general matrices with i.i.d. entries. We also study the extremal values of these fields and demonstrate their logarithmic dependence on the matrix dimension. Grazie dell'attenzione Buona giornata Alessandra ************************************************* Prof. Alessandra Faggionato https://www1.mat.uniroma1.it/people/faggionato/ Department of Mathematics University "La Sapienza" Piazzale Aldo Moro, 5 00185 - Rome Office 123, first floor *************************************************

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Bando di Dottorato MODELLI E METODI MATEMATICI E STATISTICI PER L’ECONOMIA E LA FINANZA, MEMOTEF SAPIENZA
by Claudia Ceci 28 May '25

28 May '25

Buongiorno, si avvisa che è stato pubblicato il bando per l’ammissione al corso di Dottorato di Ricerca (41° ciclo) in MODELLI PER L'ECONOMIA, IL TERRITORIO E LA FINANZA (Scuola di Dottorato in Economia), presso il Dipartimento MEMOTEF, Università di Roma "Sapienza" https://www.uniroma1.it/it/pagina/ammissione-ai-corsi-di-dottorato Il Dottorato si articola in due curricula, di cui uno dal titolo *MODELLI E METODI MATEMATICI E STATISTICI PER L’ECONOMIA E LA FINANZA. * Tutte le informazioni utili sono reperibili alla pagina: https://phd.uniroma1.it/web/concorso41.aspx?i=4045&l=IT *La scadenza per la presentazione delle domande è fissata inderogabilmente al * *19 giugno 2025, ore 23:59.* Si prega di darne massima diffusione tra i potenziali interessati. Grazie, Claudia Ceci *************************************************************************************************** Claudia Ceci Prof. I fascia STAT-04/A Dipartimento di Metodi e Modelli per l’Economia, il Territorio e la Finanza (MEMOTEF) Università di Roma La Sapienza Via Del Castro Laurenziano 9 Roma 00161 Email: claudia.ceci(a)uniroma1.it

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2nd Dolomites Winter School on Mean-field systems in finance, neurosciences and AI
by Andrea Pascucci 28 May '25

28 May '25

It is our pleasure to announce the *2nd Dolomites Winter School on Mean-field systems in finance, neurosciences and AI <https://sites.google.com/view/dolomitesws26>* * * which will take place in*Folgarida* on*January 11-16, 2026*. _Mission:_ The winter school is designed for Ph.D. students as well as early career researchers in the areas of probability, stochastic analysis, machine learning, mathematical finance. However, any researcher in these areas is encouraged to partecipate. It will take place in Folgarida, in the heart of the Dolomites, a world-renowned alpine destination and a World Heritage site since 2009, thanks to their beauty and unique landscapes. _Courses:_ * *Noufel Frikha* (Université Paris 1 - Panthéon Sorbonne), "McKean-Vlasov SDEs, Related PDEs on the Wasserstein Space, and Applications" * *Eva Löcherbach* (Université Paris 1 - Panthéon Sorbonne), "Modeling spiking neurons by interacting systems of point processes with variable memory" _Highlights:_ * *Free participation* (registration is compulsory) * Discounted accommodation rates available for reservations made *by September 15* (see the website)* * * *Contributed and poster sessions* for the participants _Further information available at_ https://sites.google.com/view/dolomitesws26 For special queries, please contact the organizers at:dolomitesws@gmail.com <mailto:ws25unibomi@gmail.com> -- --------------------------------------------------------------- Andrea Pascucciandrea.pascucci(a)unibo.it Dipartimento di Matematica P.zza di Porta S. Donato, 5 40126 Bologna - Italy Office Tel. +39-0512094428 Fax +39 0510821834 https://sites.google.com/view/andrea-pascucci/ Skype: andrea.pascucci https://unibo.zoom.us/j/8625962910 ---------------------------------------------------------------

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PhD Open Day – Mathematics at Sapienza University of Rome
by Lorenzo Taggi 27 May '25

27 May '25

We are pleased to announce that the *PhD Open Day for the Doctoral Program in Mathematics* at *Sapienza University of Rome* will take place on *Thursday, May 29th, 2025*. The event will include a presentation of the PhD program structure and research areas, including *PhD positions in Probability*. All students interested in pursuing a PhD in Mathematics, particularly in *Probability*, are warmly invited to attend. Please find the schedule at this link. <https://phd.uniroma1.it/web/presentazione-del-concorso-per-il-41-mo-ciclo_n…>

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Seminario Padova - Vanessa Jacquier
by Alberto Chiarini 27 May '25

27 May '25

Buongiorno a tutti, Vorremmo segnalarvi che venerdì prossimo (30 Maggio) alle ore 14:30 in aula 2AB30 (Torre Archimede, Università di Padova) ci sarà un seminario per il ciclo di seminari in Probabilità e Finanza di: Vanessa Jacquier (Università di Padova) Title: Discrete Nonlocal Isoperimetric Inequality and Analysis of the Long-Range Bi-Axial Ising Model Date: May 30, 2025, at 14:30, 2BC30 Abstract: We consider a generalization of the classical perimeter, referred to as the nonlocal bi-axial discrete perimeter, in which not only the external boundary of a polyomino contributes to the perimeter, but all its internal and external components. In particular, this nonlocal bi-axial perimeter is a fractional function that depends on the shape of the given geometrical figure and on a parameter λ>1, which accounts for the long-range effect. We tackle the nonlocal discrete isoperimetric problem analyzing and characterizing the minimizers within the class of polyominoes with a fixed area. The solution of this isoperimetric problem provides a rigorous foundation for studying the metastable behavior of the long-range bi-axial Ising model. Vi aspettiamo numerosi! Alberto Chiarini e Alekos Cecchin Sito web del seminario: https://www.math.unipd.it/~chiarini/seminars/

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Call for applications PhD in Mathematics UniTn-UniVr
by Luca Di Persio 27 May '25

27 May '25

Dear all, We are happy to announce the new call for applications to the 41st cycle of the PhD course in Mathematics<https://www.unitn.it/en/phd/mathematics> jointly conducted by the Department of Mathematics of the University of Trento<https://www.maths.unitn.it/en> and the College of Mathematics<https://www.univr.it/en/university/-/organo/mathematics-teaching-committee> of the Department of Computer Science of the University of Verona<https://www.di.univr.it/?lang=en>. Here you can find all the details https://www.unitn.it/sites/default/files/2025-05/MATHS_41_ENG_0.pdf Deadline: June 20th, 2025, at 16:00 (Italian time) Please feel free to forward this announcement to any students you think might be interested. All the best, LuCa __ Luca Di Persio - PhD College of Mathematics Dept. of Computer Science University of Verona strada le Grazie 15 - 37134 Verona - Italy Tel : +39 045 802 7968 Official UniVr spinoff: www.hpa.ai<http://www.hpa.ai/>

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Bando RTT Università di Pisa
by Mario Maurelli 27 May '25

27 May '25

Gentili colleghi, (English below) è aperta una procedura di selezione per l’assunzione di 1 Ricercatore a tempo determinato in tenure track (RTT) presso il Dipartimento di Matematica dell'Università di Pisa. Settore scientifico disciplinare (SSD): MATH-03/B - Probabilità e Statistica Matematica Accesso riservato: La selezione è aperta a coloro che: sono o sono stati, per una durata non inferiore a un anno, titolari di contratti da ricercatore “junior” (RTD-A), oppure sono o sono stati, per una durata complessiva non inferiore a tre anni, titolari di uno o più assegni di ricerca. Scadenza per la presentazione delle domande: ore 13:00 del 9 giugno 2025 Per ulteriori dettagli sulla procedura e i requisiti, vi invitiamo a consultare il bando completo disponibile sul sito dell'Università: https://bandi.unipi.it/public/Bandi/Detail/7adfad3c-c8be-46ac-b6dc-bc4b2a4c… English version: A call is open for a Researcher in Tenure Track (RTT) position at the Mathematics Department of the University of Pisa. Scientific disciplinary sector (SSD): Math-03/B - Mathematical probability and statistics Reserved access: the selection is open to those who have or have been, for a duration of not less than one year, holders of contracts as a researcher "Junior" (RTD-A) , or holders of post-doc positions for a total duration of not less than three years. Deadline for applications: 1PM, 9 June 2025 For further details on the procedure and requirements, we invite you to consult the complete announcement available on the university website: https://bandi.unipi.it/public/bandi/detail/7adfad3c-c8be-46ac-b6dc-bc4b2a4c… Cordiali saluti Mario Maurelli

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PhD/Postdoc position - Ruhr University Bochum
by Nicola Turchi 27 May '25

27 May '25

Dear colleagues, I am pleased to share the following call for applications: __________ *PhD or Postdoctoral Position in Probability Theory* *Ruhr University Bochum – Faculty of Mathematics* *Application deadline: June 27, 2026* The Faculty of Mathematics at Ruhr University Bochum invites applications for a *PhD* or *Postdoctoral* position in *Probability Theory*, with a flexible start date (no later than January 2026). The position is part of the research group of *Prof. Christoph Thäle*, which focuses on *stochastic geometry* and *geometric probability*. The group's research centers on the asymptotic behavior of random spatial structures – ranging from discrete to high-dimensional models – using tools from probability theory and geometric analysis. We are looking for a highly motivated candidate conducting independent research in a modern area of probability theory, ideally with a focus on stochastic geometry. Applicants should hold an excellent *Master’s degree* (for the PhD position) or *PhD* (for the PostDoc position) in mathematics, preferably in one of the following areas: - Probability theory - Geometry - Combinatorics *Position details:* - *PhD position*: 75% TV-L E13 (German public sector pay scale) - *PostDoc position*: 100% TV-L E13 *Application process:* Please submit your application *electronically* as a single PDF file, including: - a cover letter - a curriculum vitae (CV) - academic transcripts Send your application to: tanja.schiffmann(a)rub.de. For further information or inquiries, please contact *Christoph Thäle* ( https://sites.google.com/view/christophthaele/start). We look forward to receiving your application by *June 27, 2026*. __________ Best wishes, -- Nicola Turchi Dipartimento di Matematica e Applicazioni Università degli Studi di Milano-Bicocca

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Seminario di Amichai Painsky presso l'università Bicocca, Mercoledì 4 giugno
by Mario Beraha 27 May '25

27 May '25

Buongiorno a tutti, Vi segnalo il seguente seminario in presenza presso l’università di Milano-Bicocca. 4 giugno 2025, ore 12:00, Aula Seminario 2104, Edificio U7, Via Bicocca degli Arcimboldi, 8, Milano. Speaker: Amichai Painsky, Tel Aviv University Title: Large Alphabet Inference Abstract: Consider a finite sample from an unknown distribution over a large alphabet. Making inference in a large alphabet regime is a fundamental problem in statistics and related fields, which entails several basic challenges. For example, how accurately can we infer the parameters of events that do not appear in the sample? What can we say about the most frequent events in the sample? The entire underlying distribution? In this talk we introduce a novel inference scheme that tackles these challenging problems. Our proposed framework applies selective inference, as we construct confidence intervals (CIs) for the desired set of parameters. Interestingly, we show that obtained CIs are dimension-free, as they do not grow with the alphabet size. Further, we show that our CIs are (almost) tight, in the sense that they cannot be further improved without violating the prescribed coverage rate. Contatto: riccardo.corradini(a)unimib.it<mailto:riccardo.corradini@unimib.it> Buona giornata, Mario Beraha

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Short courses in GSSI trimester
by Lu Xu 27 May '25

27 May '25

Dear colleagues and friends, we are glad to announce the forthcoming short courses and seminar in GSSI in June: June 3-5 (short cours) & June 6 (seminar): Prof. Gian Michele Graf (ETH Zurich) June 10-12: Prof. Lenya Ryzhik (Stanford) Please see at the end of the email for the detailed information. Registration is free through the web form: https://indico.gssi.it/event/745/. Other courses hosted by the trimester can be found here: https://trimester2025.math.gssi.it/all_courses/. We would be grateful if you could circulate the announcement among potentially interested students and researchers. For any information do not hesitate to contact us (patterns(a)gssi.it<mailto:patterns@gssi.it>). ———————————————— Venue: Main Lecture Hall, Gran Sasso Science Institute (Viale F. Crispi 7, L’Aquila) ———————————————— Matter and topology: an overview Gian Michele Graf (ETH Zurich) 3/6 (Tue) 14:15-15:45 5/6 (Thu) 14:15-15:45 6/6 (Fri) 09:00-10:45 Topological insulators are materials that are conducting at their edge, though not in the bulk. Their essential physical properties are encoded by an index. After reviewing the historical origins, and the Quantum Hall effect in particular, the appropriate indices will be discussed (Chern numbers, index of a pair of projections), as well as bulk-edge correspondence. Thereafter symmetry protected topological insulators will be addressed. The focus will be on symmetries like time-reversal and particle-hole conjugation and, correspondingly, on the Quantum Spin Hall effect and Majorana zero modes in superconductors, in physical dimensions d=2 and 1, respectively. More broadly, the Kitaev table describes the kind of indices that occur in relation to many more symmetries, in any dimension d, and its derivation will be treated. Special topics beyond the above framework, such as time-dependent systems (Floquet or quantum pumps) or classical systems (hydrodynamics) may occur too, as time permits. ———————————————— SMAQ Seminar: Adiabatic charge pumps and Galilei covariance Gian Michele Graf (ETH Zurich) 6/6 (Fri) 14:00-15:30 The Thouless theory of quantum pumps establishes quantized transport per cycle and determines the necessary conditions. When the description is shifted to a moving reference frame, as suggested by recent experiments on ultracold gases, transported and residing charges mix. That transformation is encoded in Galilean space and time, but underlying it is one of vector bundles that may be described in a number of ways, that may or may not rely on Bloch theory. In one of them, the transformation mixes strong and weak indices of a bundle on a 2-torus; in another one, a 3-torus is at center stage; in yet another one, and somewhat informal way, the transformation is related to a paradox that astonished seafarers of centuries past. Joint work with T. Esslinger and F. Santi. ———————————————— Branching Brownian motion and knowledge diffusion: from Fisher-KPP to MFG Lenya Ryzhik (Stanford) 10/6 (Tue) 16:15-17:45 11/6 (Wed) 10:45-12:15 & 16:15-17:45 12/6 (Thu) 16:15-17:45 We will first discuss the general connection, via the voting models, between the branching Brownian motion (BBM) and the Fisher-KPP and other semilinear parabolic equations. This connection, together with the long time asymptotics of the solutions, allows, in particular, to deduce some fine properties of BBM, such as the law of large numbers and fluctuations of the limiting process near the maximum of BBM. In the second half of the lectures, we will discuss some knowledge diffusion models that arise in macroeconomics and lead to mean-field game type of problems that are also related to non-local Fisher-KPP equations. ———————————————— With our best wishes, Lu Xu Assistant Professor (RTDb) Gran Sasso Science Institute

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Seminario di Hakima Bessaih - Pavia, 3 giugno 2025 ore 14
by Benedetta Ferrario 27 May '25

27 May '25

Martedì *3 giugno alle ore 14* presso il Dipartimento di Scienze Economiche e Aziendali (aula E, piano terra) dell'Università di Pavia, la prof.ssa Hakima Bessaih terrà un seminario: *titolo*: Dynamical systems with noisy data *abstract*: Reconstructing the state of a dynamical system from noisy observations is particularly challenging when the initial conditions are unknown. This talk focuses on synchronization-based and feedback control methods for data assimilation, which dynamically align model trajectories with observed data. Techniques such as nudging, observer-based schemes, and coupling strategies will be discussed, highlighting how they correct for uncertainty and stabilize the system in real time. Applications include chaotic systems and models governed by stochastic dynamics. Tutti gli interessati sono invitati a partecipare. Un cordiale saluto Benedetta Ferrario

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PhD in Mathematics at University of Torino, Italy
by Riccardo Maffucci 26 May '25

26 May '25

Dear Colleagues, I would like to draw your attention to the open call for positions in the PhD program in Mathematics at the University of Torino, Italy. See here<https://www.dottorato.unito.it/do/home.pl/View?doc=Bando_XLI_ciclo.html> for the call and information on how to apply. Deadline: June 15th. There are 10 positions with scholarship, with one reserved for candidates with a foreign master degree. See here<https://www.dottorato.unito.it/do/documenti.pl/ShowFile?_id=strh;field=file…> for a description of the 10 positions, some of which involve a joint supervision with a foreign partner. See also this link<https://www.mathphd.unito.it/do/home.pl/View?doc=supervisors.html> for a list of research topics with corresponding possible supervisors. I would like to draw your attention specifically to the possibility of a PhD on Planar Graphs and Polyhedra, co-supervised by me in Torino, and with frequent visits to the University of Warwick, UK, working with Prof. Agelos Georgakopoulos. There is also the possibility of a PhD supervised by me on topics relating to graph theory, number theory, geometry of numbers, discrete mathematics, probability. Candidates are very welcome to contact me for further details if they are interested. The interviews for the selection of candidates will take place in July, and can be carried out online. The outcome of the selection will be published at the beginning of August; admitted candidates have 7 days to accept the position. Candidates can obtain their Master degree by October 31st, 2025 (and not by the expiry date of the call). The starting date of the PhD program is November 1st, 2025. Please forward this email to anyone who might be interested. Best regards, Riccardo Maffucci University of Torino

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