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Announcement PhD course@UniPD - Bessel, Cox-Ingersoll-Ross, Ornstein-Uhlenbeck and Gaussian-Volterra processes with Wiener and fractional drivers, by Prof. Yuliia Mishura
by Tiziano Vargiolu 07 May '25

07 May '25

We are pleased to announce the PhD course "Bessel, Cox-Ingersoll-Ross, Ornstein-Uhlenbeck and Gaussian-Volterra processes with Wiener and fractional drivers", held by Prof. Yuliia Mishura (Department of Probability, Statistics and Actuarial Mathematics, Taras Shevchenko National University of Kyiv) The course is organized by the Doctoral Program in Mathematical Sciences of the University of Padova --------------------- Aim: To introduce PhD students to the most interesting and modern models of stochastic pro- cesses, which, firstly, have various and quite deep analytical, wise-trajectory and asymptotic properties, and secondly, serve as adequate models in financial mathematics, physics, cellular communications, biology, etc. We will consider stochastic differential equations with both the Wiener process and the fractional Brownian process and its generalizations. Course contents: Standard Cox-Ingersoll-Ross and Bessel processes: local and global be- haviour of the trajectories as the functionals of coefficients. Fractional Cox-Ingersoll-Ross and Bessel processes and their main properties in dependence of the value of Hurst index. Drift parameters estimation in the standard and fractional Cox-Ingersoll-Ross models. Exact and ap- proximate option pricing under stochastic volatility modeled by fractional Ornstein-Uhlenbeck process. Functional limit theorems for financial markets driven by fractional long-range de- pendent processes. Fractional Gaussian noise: entropy and alternative entropy functionals, an- alytical and computational problems related to predictors. Gaussian-Volterra processes as the generalization of fractional Brownian motion. Tempered fractional processes. A more detailed description of the course can be found here: https://www.math.unipd.it/~dottmath/corsi2025/Mishura.pdf --------------------------- The course will consist of 16 hours, beginning on May 14, 2025 with the following calendar: 14/5 h. 14.30-16.30 16/5 h. 10.00-12.00 20/5 h. 14.30-16.30 21/5 h. 14.30-16.30 27/5 h. 14.30-16.30 30/5 h. 10.00-12.00 3/6 h. 14.30-16.30 6/6 h. 10.00-12.00 The course is free, but for organizing reasons we kindly ask all interested people to enroll the course here: https://servizi-esterno.math.unipd.it/userlist/lista/view?id=119 ------------------ Best regards Tiziano -------------------------------------------------------------------------- Tiziano Vargiolu Dipartimento di Matematica Phone: +39 049 8271383 Universita' di Padova Fax: +39 049 8271428 Via Trieste, 63 E-mail: vargiolu(a)math.unipd.it I-35121 Padova (Italy) WWW: http://www.math.unipd.it/~vargiolu --------------------------------------------------------------------------

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Next OWPS today
by Luisa Andreis 07 May '25

07 May '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 dates: May 14, May 21). We hope to see many of you online! Luisa and Roger ---------- Forwarded message --------- From: One World Probability <ow.probability(a)gmail.com<mailto:ow.probability@gmail.com>> Date: Sun, May 4, 2025 at 9:58 PM Subject: Next OWPS this Wednesday To: <owps(a)lists.bath.ac.uk<mailto:owps@lists.bath.ac.uk>> The next OWPS will be on Wednesday, May 7, from 13:00 to 15:00 UTC time Speakers: Matthew Kahle<https://matthewkahle.org/> (Ohio State University), András Mészáros<https://users.renyi.hu/~meszaros/> (Alfréd Rényi Institute of Mathematics) 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. Upcoming seminars<https://www.owprobability.org/one-world-probability-seminar/future-seminars>: May 14: Matteo Quattropani (Roma Tre University), Federico Sau (University of Milan) May 21: Eleanor Archer (Dauphine-PSL Paris), Anita Winter (Duisburg-Essen University) ----------------------- Introduction to determinantal random hypertrees Matthew Kahle (Ohio State University) Abstract: A hypertree is a simplicial complex that serves as a higher-dimensional analogue of a tree. We will discuss a natural model of random hypertree, inspired by enumerative work of Kalai and probabilistic work of Lyons. This model is a higher-dimensional analogue of a uniform spanning tree on a complete graph. In this talk, we will take some time to carefully motivate and define the model, and then to discuss some of its probabilistic properties. Finally, we will overview some results of Andrew Newman's and mine about the basic properties of 2-dimensional determinantal random hypertrees. In particular, we will discuss torsion in homology and hyperbolicity of the fundamental group. I will not assume any topological prerequisites, and will aim to make the talk as self contained as possible. Determinantal hypertrees and graph limits András Mészáros (Alfréd Rényi Institute of Mathematics) Abstract: We discuss how graph limit theory can provide us with useful tools to understand random simplicial complexes. Extendending the result of Grimmett on the local weak limit of uniform random spanning trees of complete graphs, we describe the local weak limit of determinantal hypertrees. Relying on the large deviation principle for the Erdős–Rényi random graph by Chatterjee and Varadhan, we give an upper bound on the mod 2 homology of 2-dimensional determinantal hypertrees. If time permits, we discuss conjectures on the distribution of the p-torsion of the first integral homology group of 2-dimensional determinantal hypertrees. https://polimi-it.zoom.us/j/92945513591?pwd=zjtRwpHoO9kRyQuPPj4o186jXrvg1v.1 Meeting ID: 92945513591 Passcode: 131676

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Save the date: OWABI@BioInference2025 - 29th May 10am UK time
by Massimiliano Tamborrino 07 May '25

07 May '25

Dear all, the next OWABI www.warwick.ac.uk/owabi<http://www.warwick.ac.uk/owabi> is going to be quite special, consisting of two selected talks livestreamed from BioInference 2025 (https://bioinference.github.io/2025/), a conference on mathematical modelling and inference on (broadly speaking) biological system. The seminars will be on Thursday the 29th May, at 10am UK time (note the different time with respect to previous seminars), 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: 10-10.30am 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: 10.30-11am 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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5th ZiF Summer School Randomness in Physics and Mathematics
by Manuela Girotti 07 May '25

07 May '25

Deal all, I am forwarding the following exciting Summer School opportunity for young researchers (PhDs and postdocs). << Dear Colleague, Below please find the second circular on the 5th ZiF Summer School Randomness in Physics and Mathematics: From Thermalisation in Quantum systems to Random Matrices, Aug. 25 - Sept. 6, 2025, ZiF Bielefeld, Germany Please feel free to forward this to potential junior participants. The goal of this two-week event is to bring together PhD or MSc students and postdocs from various areas in mathematics, mathematical and theoretical physics. Topics include the eigenstate thermalisation hypothesis, two-dimensional Coulomb gases, multiplicative chaos and deep learning, with methods coming from free probability, spin glasses, integrable systems, and statistics. The interdisciplinary lecture series will be given by Benoit Collins (Kyoto), Laszlo Erdös (Klosterneuburg), Laura Foini (Saclay), Silvio Franz (Paris), Tamara Grava (Bristol), Gaultier Lambert (Stockholm), Andrea Montanari (Standford) and Ofer Zeitouni (Rehovot), see https://indico.physik.uni-bielefeld.de/event/220/ for further details. The school will kick off the 4 month programme "The Lush World of Random Matrices" at the Centre for Interdisciplinary Research ZiF, organised by Jean-Philippe Bouchaud and Valentina Ros. For further information including the 3 workshops held in this period see https://www.uni-bielefeld.de/einrichtungen/zif/groups/ongoing/matrices/ May 18 2025 is the deadline for applications to participate in the 5th ZiF Summer School, see https://indico.physik.uni-bielefeld.de/event/220/page/38-registration-form For further information about the school please contact one of the organisers: akemann(a)physik.uni-bielefeld.de or goetze(a)math.uni-bielefeld.de With best regards, Gernot Akemann and Friedrich Goetze >>

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Seminario Wojciech Górecki - Politecnico di Milano - 12 Maggio 2025
by Luca Scarpa 06 May '25

06 May '25

Si segnala il seguente seminario a tutti gli interessati. Lunedì 12 Maggio 2025, ore 11:00. Aula Seminari III Piano, Dipartimento di Matematica, Politecnico di Milano. Speaker: Wojciech Górecki, Università di Pavia. Title: Fundamental bounds for the metrology of open quantum systems. Abstract. Quantum mechanics allows for enhanced measurement precision beyond classical limits by harnessing entanglement and/or long-time coherence. However, these resources are highly sensitive to noise, making their use in open quantum systems particularly challenging. At the same time, optimizing metrological protocolsกชanalytically or numericallyกชbecomes increasingly difficult as system size and measurement complexity grow. Nonetheless, for quantum systems governed by a master equation, it is possible to derive fundamental, protocol-independent bounds on achievable precision. These bounds provide an objective benchmark to assess existing strategies and identify potential for improvement. In this seminar, I will present these fundamental bounds, first introduced by A. Fujiwara and H. Imai and later extended by R. Demkowicz-Dobrzaจฝski, S. Zhou, L. Jiang, among others. I will illustrate the framework through examples involving interferometry and cavity parameter estimation under photon loss, with particular attention to critical metrology and continuous measurement in the steady-state regime. Link Zoom: https://polimi-it.zoom.us/j/98193479401?pwd=erIyNXKLNBPYszVUmps1PuI4xg1ztq.1 Link Seminario Polimi: https://www.mate.polimi.it/Eventi/?id=2585&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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borsa di dottorato presso il Politecnico di Milano di statistica spaziale - scadenza iscrizioni 30 maggio 2025
by Alessandra Guglielmi 06 May '25

06 May '25

Cari colleghi, si è aperto il bando per una borsa di dottorato presso il Politecnico di Milano di argomento di statistica spaziale. Qui sotto l'annuncio, in italiano ed inglese, da fare circolare ai potenziali interessati. Grazie Cari saluti Alessandra Guglielmi #################################### È stato pubblicato il bando per una borsa di dottorato tematica di argomento statistico presso il Politecnico di Milano su metodi statistici spaziali per le disuguaglianze nell’offerta di servizi di istruzione e cura della prima infanzia (ECEC) e nell’impatto sulla partecipazione delle donne al mercato del lavoro. La scadenza per l'iscrizione è il 30 maggio alle h 14. Il bando e il link al sito per la procedura di iscrizione si trovano qui: https://www.dottorato.polimi.it/futuri-dottorandi/bandi-e-regolamenti/ciclo… La scheda della borsa, dal titolo SPATIAL ANALYSIS OF INEQUALITIES IN EARLY CHILDHOOD EDUCATION AND THEIR IMPACT ON WOMEN’S LABOUR MARKET PARTICIPATION si trova a partire da questa pagina https://www.dottorato.polimi.it/futuri-dottorandi/bandi-e-regolamenti/ciclo… cliccando prima su MODELLI E METODI MATEMATICI PER L'INGEGNERIA<https://www.dottorato.polimi.it/fileadmin/user_upload/bandi/ciclo41/bandoGU…>, poi su Thematic scholarships webpage e infine scaricando il pdf col titolo della borsa. La borsa è sostenuta dal progetto di ricerca #GROW - Where to grow a child? Spatial inequalities in ECEC and its impact on women’s labour market participation, finanziato dalla Fondazione Cariplo. Relatori: Alessandra Guglielmi, Dipartimento di Matematica, Polimi; Lara Maestripieri, Universitat Autonoma de Barcelona, Barcellona (Spagna). Il dottorando/la dottoranda dovrà spendere da 6 mesi a 1 anno presso l’Universitat Autonoma de Barcelona. Il dottorando/la dottoranda si occuperà di modelli bayesiani per il clustering di dati areali. Sarà coinvolto nel confronto tra l’offerta di ECEC a Milano e a Barcellona. Avrà un ruolo attivo nella disseminazione delle inferenze ottenute verso la società civile e i policymaker locali e nazionali. Borsa di studio: 1400 € netti mensili (x 36 mesi), +50% durante 6 mesi di trasferta a Barcellona. Chiusura del bando: 30/05/25, graduatoria del vincitore e degli idonei: 21/07/25. Presa di servizio: 12/09/25; è necessario essere laureati magistrali prima di quella data. Per ulteriori informazioni, contattare alessandra.guglielmi(a)polimi.it ####################################################### A call for applications has just been issued for a thematic PhD scholarship in statistics at the Politecnico di Milano. The position focuses on spatial statistical methods for analyzing inequalities in the provision of early childhood education and care (ECEC) services and their impact on women's participation in the labor market. The application deadline is 30 May at 2:00 PM. The official call, including the rules and the link to the online application portal, can be found here: https://www.dottorato.polimi.it/en/prospective-phd-candidates/calls-and-reg… For further information, click on MATHEMATICAL MODELS AND METHODS IN ENGINEERING<https://www.dottorato.polimi.it/fileadmin/user_upload/bandi/ciclo41/bandoGU…> and then on Thematic scholarships webpage and download the description of the PhD project entitled “SPATIAL ANALYSIS OF INEQUALITIES IN EARLY CHILDHOOD EDUCATION AND THEIR IMPACT ON WOMEN’S LABOUR MARKET PARTICIPATION”. The scholarship is funded by the research project #GROW - Where to grow a child? Spatial inequalities in ECEC and its impact on women’s labour market participation. Supervisors: * Alessandra Guglielmi (Department of Mathematics, Politecnico di Milano) * Lara Maestripieri (Universitat Autònoma de Barcelona – Barcelona, Spain). The PhD student will spend from 6 to 12 months at Universitat Autònoma de Barcelona. The main research topic concerns Bayesian models for clustering areal data. The student will be involved in comparing the provision of ECEC in Milan and Barcelona. The student will also play an active role in disseminating inferences to civil society and local and national policymakers. Three-year scholarship: €1,400 net per month (for 36 months). During the 6-month stay in Barcelona, the scholarship will be increased by 50%. Call closing: 30/05/2025 Publication of the ranking list: 21/07/2025. Start date of the PhD program: 12/09/2025. To be eligible, candidates must obtain their Master’s degree by 11 September 2025. For additional information, contact alessandra.guglielmi(a)polimi.it -- Alessandra Guglielmi Dipartimento di Matematica - Politecnico di Milano Piazza Leonardo da Vinci, 32 - 20133 Milano (ITALY) tel ++39.02.23994641 e-mail: alessandra.guglielmi(a)polimi.it<mailto:alessandra.guglielmi@polimi.it>

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Fwd: Seminario di Matematica, Scienza & Società
by Faggionato, Alessandra 05 May '25

05 May '25

Buongiorno, ricevo e con piacere inoltro. Saluti Alessandra ---------- Forwarded message --------- From: Teta, Alessandro <teta(a)mat.uniroma1.it> Date: Mon, 5 May 2025 at 17:17 Subject: Seminario di Matematica, Scienza & Società To: Alessandra Faggionato <faggiona(a)mat.uniroma1.it> Avviso di seminario di Matematica, Scienza & Società Lunedì 12 maggio 2025, alle ore 17.00 Aula Picone del Dipartimento di Matematica G. Castelnuovo di Sapienza Università di Roma *Andrea Rinaldo (École Polytechnique Fédérale Lausanne & Università di Padova)Clima, acqua, malattie e solidarietá nel mondo che cambia* Sommario Il clima sta cambiando rapidamente. Dobbiamo farlo anche noi, non considerando scontati privilegi consolidati dal tempo, usi e tradizioni dei luoghi, organizzazioni politiche e sociali, e le espressioni della sensibilità collettiva. Serviranno letture attente del governo dell’acqua, riflettendo su Ambiente naturale e costruito intorno a noi, e ripensamenti del rapporto fra risorse e solidarietà, e sui modi e i tempi della giustizia distributiva nella gestione delle risorse idriche. La mia tesi: i grandi temi di salvaguardia legati al governo dell’acqua, e dunque alla metastoria, riguardano sia il Nord che del Sud del mondo, e ci obbligano a riflettere sulla relazione fra trasformazioni del paesaggio, usi del suolo e dinamica delle risorse naturali, ma anche su un’etica dello sviluppo che tenga conto di un’equa distribuzione dei privilegi e delle risorse. Il seminario si propone in particolare di evidenziare il filo rosso che lega la descrizione matematica di processi idrologici ed epidemiologici, e della geometria della natura nel paesaggio fluviale, a temi centrali nella valutazione della ricchezza e della povertà delle nazioni e nella economia ambientale contemporanea. Per le registrazioni dei seminari già svolti e altre informazioni visita il sito https://sites.google.com/view/alessandro-teta/matematica-scienza-e-societa?… I seminari di Matematica, Scienza e Società sono dedicati all'approfondimento storico e critico di aspetti della matematica e dei suoi rapporti con la scienza e con la società. I seminari hanno carattere interdisciplinare e sono rivolti a studenti, dottorandi, docenti universitari e docenti della scuola secondaria di secondo grado. F. Dell'Isola, M. Pulvirenti, E. Rogora, B. Scoppola, A. Teta %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -- ************************************************* 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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Seminario Emanuele Dolera - Politecnico di Milano - 9 Maggio 2025
by Luca Scarpa 05 May '25

05 May '25

Si segnala il seguente seminario a tutti gli interessati. Venerdì 9 Maggio 2025, ore 11:00. Aula Seminari III Piano, Dipartimento di Matematica, Politecnico di Milano. Speaker: Emanuele Dolera, Università di Pavia. Title: A new approach to Bayesian consistency rates via Wasserstein dynamics. Abstract: allegato Link Zoom: <https://polimi-it.zoom.us/j/95865098687?pwd=GHed5kk0YbVynvjPLYmMviqSoZpvaW.1> [cid:8fd49d77-1c52-4688-a3c4-5599dc0b248b@EURP251.PROD.OUTLOOK.COM] <https://polimi-it.zoom.us/j/95865098687?pwd=GHed5kk0YbVynvjPLYmMviqSoZpvaW.1> Join our Cloud HD Video Meeting<https://polimi-it.zoom.us/j/95865098687?pwd=GHed5kk0YbVynvjPLYmMviqSoZpvaW.1> polimi-it.zoom.us<https://polimi-it.zoom.us/j/95865098687?pwd=GHed5kk0YbVynvjPLYmMviqSoZpvaW.1> Link Seminario Polimi: <https://www.mate.polimi.it/Eventi/?id=2584&sezione_di_ricerca=&stringa=&sub…> Eventi Dipartimento di Matematica - Politecnico di Milano<https://www.mate.polimi.it/Eventi/?id=2584&sezione_di_ricerca=&stringa=&sub…> mate.polimi.it<https://www.mate.polimi.it/Eventi/?id=2584&sezione_di_ricerca=&stringa=&sub…> <https://www.mate.polimi.it/Eventi/?id=2584&sezione_di_ricerca=&stringa=&sub…> [cid:22b0865f-f3c6-4784-88a5-f6d6f20c3901@EURP251.PROD.OUTLOOK.COM] <https://www.mate.polimi.it/Eventi/?id=2584&sezione_di_ricerca=&stringa=&sub…> <https://www.mate.polimi.it/Eventi/?id=2584&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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Bayesian Methods in Economics and Finance -- Summer School (25 - 29 August 2025, Venice)
by Roberto CASARIN 05 May '25

05 May '25

Dear Colleagues, The *Italian Econometric Association* (SIdE-IEA, https://www.side-iea.it/), in collaboration with the *Venice Centre in Economic and Risk Analytics for Public Policies* (VERA, https://www.unive.it/vera) at the Department of Economics, organizes the course for PhD students in: Bayesian Methods in Economics and Finance, 25 - 29 August 2025, Università Ca' Foscari Venezia https://www.side-iea.it/events/courses/bayesian-methods-economics-and-finan… The summer school aims to introduce participants to Bayesian Inference, starting with first principles and covering topics of interest to applied econometricians in economics and finance. The course is addressed to students without previous knowledge of Bayesian Statistics and Econometrics. The methods introduced in the lectures will be illustrated with hands-on applications in MATLAB and R based on reasoned statistical and economic examples. *Participation*: Online or in person *Application Deadline*: 18th May *Coordinator*Gaetano Carmeci <https://www.units.it/persone/index.php/from/abook/persona/4715>, University of Trieste *Lecturers* Gaetano Carmeci <https://www.units.it/persone/index.php/from/abook/persona/4715>, University of Trieste Roberto Casarin <https://www.unive.it/data/persone/5589863>, University of Venice, Italy Ca' Foscari Matteo Ciccarelli <https://www.ecb.europa.eu/pub/research/authors/profiles/matteo-ciccarelli.e…>, European Central Bank, DG Economics, Head of Forecasting and Policy Modelling Division Federico Bassetti <https://www4.ceda.polimi.it/manifesti/manifesti/controller/ricerche/Ricerca…>, Politecnico di Milano *Requirements* Intermediate knowledge of statistical inference (Note that preliminary knowledge of Bayesian inference is not required) Best Regards Roberto Casarin -- Roberto Casarin, PhD Professor of Econometrics Ca' Foscari University of Venice San Giobbe 873/b - 30121 Venezia, Italy http://sites.google.com/view/robertocasarin/ https://www.unive.it/vera <https://www.unive.it/isba2024> https://www.unive.it/isba2024

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Seminario PRISMA lunedì 5 maggio 2025 - C. Orrieri & L. Scarpa
by Sonia Mazzucchi 05 May '25

05 May '25

Buongiorno, ricordiamo a tutti gli interessati che oggi lunedì 5 maggio dalle 16 alle 17:17 si svolgerà il periodico seminario online del gruppo UMI-PRISMA. I seminari PRISMA hanno un formato di "colloquium" per creare un'occasione di scambio e discussione con tutta la comunità dei probabilisti e statistici italiani. Ogni giornata comprende due relatori che tengono due seminari di 30 minuti strettamente connessi, per presentare alla comunità una prospettiva sul proprio ambito di ricerca. Da quest'anno le registrazioni dei seminari vengono pubblicate sul canale YouTube dell'UMI: https://youtube.com/playlist?list=PLmySpc-jrtAMq84VH71evyqPc1hl6eEQb I relatori di oggi pomeriggio saranno Carlo Orrieri (Università di Pavia) e Luca Scarpa (Politecnico di Milano) che parleranno di: Equazioni stocastiche doppiamente nonlineari e relativi problemi di regolarizzazione per rumore con il seguente orario: 16:00 Primo seminario 16:30 Pausa e discussione 16:45 Secondo seminario 17:15 Conclusione e discussione Trovate di seguito il riassunto. I seminari verranno trasmessi via Zoom al seguente link: https://unitn.zoom.us/j/88514293418 <https://www.google.com/url?q=https://unitn.zoom.us/j/88514293418&sa=D&sourc…> ID riunione: 885 1429 3418 Codice d’accesso: 236100 Vi aspettiamo numerosi! Alberto Chiarini e Sonia Mazzucchi %%%%%%%%%%%%%%%%%%%%%%%%%%%% RELATORI: Carlo Orrieri (Università di Pavia) e Luca Scarpa (Politecnico di Milano) TITOLO: Equazioni stocastiche doppiamente nonlineari e relativi problemi di regolarizzazione per rumore RIASSUNTO: Nella prima parte del seminario verranno introdotte alcune classi di equazioni di evoluzione in relazione alla modellizzazione di problemi di transizione di fase. Dal punto di vista matematico tali equazioni sono caratterizzate da una dinamica doppiamente nonlineare che tipicamente non ne assicura la buona positura. In particolare, l’unicità delle soluzioni viene a mancare. Questo motiva l’introduzione e l'analisi di opportune formulazioni stocastiche per tali modelli, nell’ottica di ottenere effetti di regolarizzazione per rumore. Nella seconda parte il problema di regolarizzazione per rumore verrà inquadrato nel contesto più generale di equazioni di evoluzione stocastiche con drift singolare e verranno presentati alcuni risultati di unicità. L'applicabilità di tali tecniche identificherà naturalmente un concetto di criticità che porrà le equazioni doppiamente nonlineari in un regime supercritico. Per queste verrà fornito infine un risultato parziale di stabilità per rumore. I risultati presentati nei seminari sono stati ottenuti in collaborazione con F. Bertacco (Imperial College London) e U. Stefanelli (Università di Vienna). %%%%%%%%%%%%%%%%%%%%%%%%%%%%

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