- Random - Mailing list — Dipartimento di Matematica, UniPI

Next POPS talk today by Andreas Klippel: Dimers, double dimers, and spatial permutations with long-range interactions
by Jonas Köppl 25 Mar '26

25 Mar '26

Dear colleagues, We are excited to announce that our speaker today will be Andreas Klippel, who will be speaking about dimers, double dimers, and spatial permutations with long-range interactions. Join us today, March 25th at 13:30 GMT, 14:30 CET, 15:30 EET on Zoom with the following link: https://wias-berlin-de.zoom-x.de/j/66747761513?pwd=nfPUbXHA8aLmyo4qESwbRxTk… The talk is scheduled for one hour, allowing time for questions. Additionally, we'll be remaining on the call for a chat afterwards if you'd like to join us. ------------------------------------------ Speaker: Andreas Klippel (TU Darmstadt) Title: Dimers, double dimers, and spatial permutations with long-range interactions Abstract: The dimer model and its associated double-dimer model are fundamental objects in probability theory, statistical mechanics, and combinatorics. While their planar behavior is by now well understood, much less is known beyond planarity. We study these models on Z^d-like graphs, d \geq 1, allowing long-range edges whose weights decay with distance. For a large class of such interactions, we show that monomer correlations in the dimer model remain uniformly positive, and that loops in the double-dimer model are macroscopic. In this talk, I will introduce the models, explain their connection to spatial permutations, and give an overview of the main proof ideas. In particular, we will take a closer look at the key method, namely reflection positivity. The project presented in this talk is joint work with Lorenzo Taggi and Wei Wu. ------------------------------------------ You can find more information about the talk on our website Postgraduate Online Probability Seminars (pg-prob-sem.github.io)<https://pg-prob-sem.github.io/>. Warm regards, The POPS Team This talk will be broadcast March 25th at 13:30 GMT, 14:30 CET, 15:30 EET on Zoom only. Meeting-ID: 667 4776 1513 Passcode: 834059

1 0

Fwd: Colloquium Rendiconti//26 marzo//Francois Golse
by Faggionato, Alessandra 25 Mar '26

25 Mar '26

Buongiorno, Ricevo e con piacere inoltro il seguente annuncio di un Colloquium Rendiconti che si terrà presso il Dipartimento d Matematica G. Castelnuovo dell'Università di Roma La Sapienza. Saluti Alessandra --------------------------------------------------------------------------------------------------- *Colloquium Rendiconti* Giovedì 26 marzo 2026, ore 17, aula Picone, Dipartimento di Matematica, Sapienza Università di Roma Francois Golse (École Polytechnique, Paris) *An Invitation to Quantum Optimal Transport* Abstract. Optimal transport is an old branch of the calculus of variations whose origins can be traced back to an important memoir of Monge in 1781, followed by remarkable contributions due to Kantorovich in 1942, and in the last 50 years by R.L. Dobrushin, Y. Brenier, and many others. Among the by-products of optimal transport is a family of distances metrizing the weak topology of Borel probability measures on Euclidean spaces. The analogy between Borel probability measures on phase space and the notion of density operators used in quantum mechanics suggests defining a notion of « pseudometric » which can be used to compare two (quantum) density operators, or a density operator with a probability density in phase space. The talk will discuss the main properties of this pseudometric, and applications to some problems arising in quantum dynamics (such as the classical limit, or the mean-field limit of large particle systems…) This presentation is based on a series of works with E. Caglioti, C. Mouhot and T. Paul. -- ************************************************* 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 *************************************************

1 0

Call for papers ''Mathematics Applied to Society: Early Scholars Meeting”(MASES Meeting).
by Roy Cerqueti 24 Mar '26

24 Mar '26

Dear all, We are pleased to announce the ''*Mathematics Applied to Society: Early Scholars Meeting” (MASES Meeting)*. *The meeting is organized by the Scientific Committee of AMASES* and will take place on *July 6–7, 2026*, at *Sapienza University of Rome*. The meeting is specifically tailored to early career scientists (born not before January 1st, 1991, and not associate or full professors) who can present not only completed studies but also research ideas and early-stage papers. We expect that the interaction of the authors with the audience will foster collaborations and discussions about open problems and possible future research lines. Senior scholars are more than welcome to participate as auditors. Contributions on the topics covered by the AMASES scientific community are welcome. The organizing committee will evaluate them for presentation as regular talks or posters. *The registration is free, but compulsory. Interested participants are invited to register by filling out the following* *form* <https://docs.google.com/forms/d/e/1FAIpQLSfo3OxrzG1XzdZJ9WUj5YmCQScR-Uo6_gG…> The same form can be used to submit an abstract. Authors are asked to specify RESEARCH IDEA / EARLY-STAGE STUDY or COMPLETE DRAFT in the submission phase. *Important deadlines:* - April 30, 2026 – Deadline for abstract submission - May 15, 2026 – Notification of acceptance - May 30, 2026 – Deadline for registration If you have any questions, feel free to send an email to early.scholars(a)amases.org. We would be grateful if you could circulate this announcement among interested researchers and doctoral students. Best regards, Roy Cerqueti -- *Fai crescere le giovani ricercatrici e i giovani ricercatori*** *con il 5 per mille alla Sapienza* Scrivi il codice fiscale dell'Università *80209930587 **Cinque per mille <https://www.uniroma1.it/it/node/23149>*

1 0

CEMRACS 2026: Modeling and AI for Environmental Transition
by Cecilia Mancini 24 Mar '26

24 Mar '26

From Peter Tankov: I am writing to let you know about the multidisciplinary summer school and research stay "CEMRACS 2026 - Modeling and AI for Environmental Transition", to be held at the Centre International de Rencontres Mathématiques (CIRM) in Marseille, that we are organizing with a group of colleagues. CEMRACS 2026 is aimed at PhD students, advanced master's students, and junior researchers, and will focus on mathematical and statistical modeling and artificial intelligence applied to key challenges in: environmental and energy economics, actuarial science, sustainable finance, ecology, and climatology. The event consists of: * A one-week summer school (July 13-17, 2026) * A five-week research session (July 20 - August 21, 2026) During the research session, participants will work in small groups on research projects supervised by senior researchers. Participants may attend only the summer school, or both the summer school and the research session (the latter subject to selection). Successful applicants to the research session will be fully funded for 6 weeks. ________________________________ Summer school courses * Mathematical modeling for biodiversity - M. Barbier * Mathematical modeling for climate: stochastic dynamics, extreme events, large deviations - F. Bouchet * Climate risks, insurance, insurability, and rare events - O. Lopez * Machine learning for climate change - C. Monteleoni * Computational and AI methods in climate economics - S. Scheidegger Special invited lectures * Mathematical models for carbon emission markets - R. Aïd * Mathematical bioeconomics for sustainable fisheries - L. Doyen * Mean-field game models for energy transition - R. Dumitrescu * Modeling of the water cycle at the interface between climate, hydrology, and socio-economy - J. Polcher ________________________________ For further details on the program, the list of research projects, and registration instructions, please visit the event website: https://cemracs2026.math.cnrs.fr/ Deadlines * Application to the research session: March 31, 2026 * Summer school registration: March 31, 2026 (early bird) or May 31, 2026 Please encourage your PhD students and post-docs interested in environmental topics to register/apply. The CEMRACS research stay is a uniquely rich scientific experience and a catalyst for long-term collaborations. Best wishes, Peter Tankov

1 0

Fwd: Discrete and Continuous Random Trees
by Silvestri, Vittoria 24 Mar '26

24 Mar '26

Ricevo e inoltro con piacere. ******************************** Vittoria Silvestri Associate Professor Department of Mathematics University "La Sapienza" Piazzale Aldo Moro, 5 00185 - Rome ******************************** ---------- Forwarded message --------- Da: Saraí Hernández-Torres <saraiht(a)im.unam.mx> Date: ven 20 mar 2026 alle ore 17:17 Subject: Re: Discrete and Continuous Random Trees To: Silvestri, Vittoria <silvestri(a)mat.uniroma1.it> Dear Vittoria, Louigi Addario-Berry, Omer Angel, Laura Eslava, and I are organizing the research workshop Discrete and Continuous Random Trees – Student Satellite Workshop. The workshop is aimed at graduate students and postdocs interested in random trees. The program is structured around five research projects, led by: - Serte Donderwinkel <https://www.sertedonderwinkel.com/> (University of Groningen) - Christina Goldschmidt <https://www.stats.ox.ac.uk/~goldschm/> (University of Oxford) - Bas Lodewijks <https://sites.google.com/view/bas-lodewijks/home> (University of Sheffield) - Guillem Perarnau <https://web.mat.upc.edu/guillem.perarnau/> (Universitat Politècnica de Catalunya) - Víctor Rivero <https://sites.google.com/view/victor-rivero/welcome> (CIMAT) The program includes - an initial online phase, - a workshop in Mexico City (September 28–October 2, 2026), - a workshop at Casa Matemática Oaxaca (October 4–9, 2026), and - a final online follow-up phase. Applications are now open! *Deadline: April 12, 2026* More information: https://randomtrees.matem.unam.mx/ Best wishes, Saraí Hernández-Torres

1 0

Reminder: OWABI - Larry Wasserman - 25th March 2pm UK time
by Massimiliano Tamborrino 24 Mar '26

24 Mar '26

Dear all, a kind reminder that our next OWABI seminar www.warwick.ac.uk/owabi<http://www.warwick.ac.uk/owabi> is scheduled tomorrow, Wednesday the 25th March at 2pm Uk time, when Larry Wasserman<https://www.stat.cmu.edu/~larry/> <https://www.stat.cmu.edu/~larry/> (Carnegie Mellon University) will talk about "Robust Simulation Based Inference", with an abstract reported below. The talk will be streamed at the OWABI MS Team channel General | OWABI Seminar: One World Approximate Bayesian Inference Seminar | Microsoft Teams<https://teams.microsoft.com/l/team/19%3AdhZ_4e_XLNJzCXPAMzTvT6BZ5KShEETkd_w…> at the following link Join: https://teams.microsoft.com/meet/3560358333600?p=Klx01mfhGgKETxxz6K Meeting ID: 356 035 833 360 0 Passcode: Fe3m7ty9 Speaker: Larry Wasserman<https://www.stat.cmu.edu/~larry/> (Carnegie Mellon University) Title: Robust Simulation Based Inference Abstract: Simulation-Based Inference (SBI) is an approach to statistical inference where simulations from an assumed model are used to construct estimators and confidence sets. SBI is often used when the likelihood is intractable and to construct confidence sets that do not rely on asymptotic methods or regularity conditions. Traditional SBI methods assume that the model is correct, but, as always, this can lead to invalid inference when the model is misspecified. This paper introduces robust methods that allow for valid frequentist inference in the presence of model misspecification. We propose a framework where the target of inference is a projection parameter that minimizes a discrepancy between the true distribution and the assumed model. The method guarantees valid inference, even when the model is incorrectly specified and even if the standard regularity conditions fail. Alternatively, we introduce model expansion through exponential tilting as another way to account for model misspecification. We also develop an SBI based goodness-of-fit test to detect model misspecification. Finally, we propose two ideas that are useful in the SBI framework beyond robust inference: an SBI based method to obtain closed form approximations of intractable models and an active learning approach to more efficiently sample the parameter space. Keywords: Exponential tilting, model misspecification, robust inference, simulation based inference, valid inference. Reference: L. Tomaselli, V. Ventura, L. Wasserman. Robust Simulation Based Inference. Preprint at ArXiv:2508.02404,<https://arxiv.org/pdf/2508.02404>2025. 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

1 0

[SURE-AI@STAR Workshop] Thurs. March 26
by Leonardo Tarquini 24 Mar '26

24 Mar '26

Dear All, We are pleased to announce the upcoming SURE-AI@STAR Workshop on the Environmental Cost of AI, on March 26 from 14:00 at Realfagbiblioteket Scene. You can find all details here: https://www.mn.uio.no/math/english/research/groups/risk-stochastics/star-se… On the webpage, you find a registration form. While the event is open, we need to secure good logistics. Please register as quickly as possible! We are looking forward to seeing you all there! Best regards, David, Giulia, Leonardo, Pere @ Risk and Stochastics

1 1

Conference Particle systems and PDEs XIV - Toulouse, 22-26 June 2026
by CHIARA FRANCESCHINI 23 Mar '26

23 Mar '26

Buongiorno, Ricevo e inoltro con piacere. ------------------------------------------------ Dear colleagues, We are pleased to announce the upcoming conference "*Particle Systems and PDEs XIV*", that will take place from *June 22 to 26, 2026*, at the* Institute of Mathematics of Toulouse.* This edition will bring together experts and enthusiasts on Particle Systems to foster new interactions between the different communities in Probability, Analysis, Mathematical Physics and Kinetic Theory. The program will include not only the recent developments on classical models from Mathematical Physics, but also on models arising from modern applications in Mathematical Biology, Collective Behaviour and Population Dynamics. We expect the participation of a vast audience, including early career researchers. There will be several plenary talks, a poster session and two mini-courses by > André Schlichting (University Ulm) > Marielle Simon (Aix-Marseille Université) Further details can be found here: *https://sites.google.com/view/pspdexiv* <https://sites.google.com/view/pspdexiv> Participation is free, but registration is required by *May 15th*. Financial support is available for students and early career researchers upon selection. Application deadline for the financial support is* April 1st.* The conference will be preceded by a 1-week *Mint Summer School* on the same topic. *https://indico.math.cnrs.fr/event/14446/* <https://indico.math.cnrs.fr/event/14446/> These events are both part of the *thematic semeste**r “Interacting particles, PDEs and applications”*, held at Institut de Mathématiques de Toulouse, from April to December 2026. *https://indico.math.cnrs.fr/category/816/* <https://indico.math.cnrs.fr/category/816/> We would greatly appreciate it if you could share this message with any colleagues or students who may be interested. We hope to see you in Toulouse in June! Best wishes, the organizers: Ana Jacinta Soares, Bastien Mallein, Clément Erignoux, Marina Ferreira, Patrícia Gonçalves and Pierre Gervais _______________ Sponsorships: > Institut de Mathématiques de Toulouse (IMT) > Agence Nationale de la Recherche (ANR) through the grant Projet sur les Processus de Markov Branchant Additifs – MBAP-P > Centre National de la Recherche Scientifique (CNRS) > Université de Toulouse > Fundação para a Ciência e Tecnologia (FCT) through the projects UID/04459/2025 (CAMGSD) and UID/00013/2025 (CMAT) > Universidade de Lisboa - Center for Mathematical Analysis, Geometry and Dynamical Systems (CAMGSD) > Universidade do Minho - Centre of Mathematics (CMAT) > International Center of Mathematics and Computer Science in Toulouse (CIMI) > Institut National de Recherche en Sciences et Technologies du Numérique (INRIA) Chiara Franceschini ------------------------------------------ RTT Componente del Senato Accademico Dipartimento di Scienze Fisiche, Informatiche e Matematiche Università degli Studi di Modena e Reggio Emilia Pagina personale: https://cfrances.weebly.com

1 0

Fractional Calculus, Probability and Non-local Operators
by Enrico Scalas 23 Mar '26

23 Mar '26

Buongiorno, le presentazioni dell'edizione 2026 di FCPNLO sono ora disponibili dal sito del RISM di Varese e sulla piattaforma YouTube: https://www.rism.it/events/fractional-calculus-probability-and-nonlocal-ope… Buona visione! Enrico Scalas

1 0

PhD position at Stockholm University
by Martina Favero 23 Mar '26

23 Mar '26

Dear colleagues, The Department of Mathematics of Stockholm University is hiring a PhD student to work on stochastic processes and/or statistical methods in mathematical biology <https://www.su.se/download/18.6cd38b7e19c98a394c51269/1772714607827/Stochas…> For* more information and how to apply*, please see the announcement <https://su.varbi.com/en/what:job/jobID:911059/type:job/where:4/apply:1> and our information page for the PhD program <https://www.su.se/english/divisions/department-of-mathematics/education/cou…> . Students who are finishing their Master's degree are also very welcome to apply. Please note that knowledge of Swedish is NOT a requirement. *Application deadline:* April 22. Please feel free to circulate to interested students. All the best, Martina Favero

1 0