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Workshop announcement: "Spreading dynamics in random environments" at WIAS Berlin: July 06-08 2026
by Benedikt Jahnel 28 Mar '26

28 Mar '26

Dear owner, would you be so kind and allow me to send the following advertisement for a workshop. Thanks and best regards, Benedikt ====================================== Dear colleagues, as a reminder, see the advertisement below for our workshop on „Spreading dynamics in random environments" at WIAS Berlin, in July: https://wias-berlin.de/workshops/SDRE26/ https://wias-berlin.de/workshops/SDRE26/ With best regards, Benedikt ====================================== Dear colleagues, the registration is now open for the workshop „Spreading dynamics in random environments" taking place July 06-08 2026 at WIAS Berlin. Understanding how infections or information propagate through populations, or more generally, through complex networks embedded in space, is a central challenge of the modern world. This workshop brings together both established experts and early-career researchers working on mathematical approaches to information and infection spread in random environments. The program will feature a mini-course by Alexandre Stauffer, complemented by invited research talks from other participants. Speakers: Prof. Alexandre Stauffer, Kings College London (Minicourse) David Coupier (IMT-Université de Lille) Marta Dai Pra (Universität Bielefeld) John Fernley (University of Warwick) Lisa Hartung (Universität Mainz) Johannes Lengler (ETH Zurich) Laurent Ménard (Université Paris Nanterre) Cornelia Pokalyuk (Universität Lübeck) Bruno Schapira (Université Lyon 1) Marie Théret (Université Paris Nanterre) Stefanie Winkelmann (Zuse Institut Berlin) More details and registration can be found at https://wias-berlin.de/workshops/SDRE26/ Registration is free but mandatory. We look forward to seeing you in Berlin, with best regards, Jonas Köppl, Lukas Lüchtrath, and Benedikt Jahnel PS: This workshop is possible thanks to the support of the SPP2265 (through the German DFG), the Berlin Cluster of Excellence Math+, and WIAS Berlin. -- Prof. Dr. Benedikt Jahnel Head of Leibniz Group DYCOMNET Weierstrass Institute for Applied Analysis and Stochastics (WIAS) Anton-Wilhelm-Amo-Str. 39 10117 Berlin, Germany Phone +49 30 20372-445 https://www.wias-berlin.de/people/jahnel/?lang=1 Legal Notice <https://www.wias-berlin.de/about/imprint.jsp> Legal entity: Forschungsverbund Berlin e. V. | Rudower Chaussee 17 | 12489 Berlin, Germany Registered office: Berlin – Registered at the Berlin-Charlottenburg local court – Reg. No.: VR 12174 B | VAT number: DE 136785011 Joint power of attorney: Prof. Dr. Michael Hintermüller (Director of the WIAS) and Martin Böhnke (Managing Director of the FVB)

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Premio SMF per Tesi di Dottorato
by Maurizia Rossi 27 Mar '26

27 Mar '26

Cari tutti, Vi segnalo con piacere una nuova attività del *Seminario Matematico e Fisico di Milano*: sono aperte le candidature per il *Premio Tesi di Dottorato* https://www.smf-milano.it/phd.html Possono partecipare alla selezione coloro che abbiano conseguito il titolo di Dottore di Ricerca in *Matematica*, o titolo riconosciuto equipollente, presso un’Università o istituzione scientifica *italiana* nei *18 mesi *precedenti la data di scadenza del bando (*31 maggio 2026*). Vi chiederei la cortesia di pubblicizzare il bando tra i vostri contatti e all'interno delle vostre Scuole di Dottorato. Cordiali saluti, Maurizia Rossi -- Maurizia Rossi Dipartimento di Matematica e Applicazioni Università degli Studi di Milano-Bicocca https://mauriziarossi.wordpress.com

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Seminario di Enrico Scalas
by Lorenzo Facciaroni 26 Mar '26

26 Mar '26

Buonasera, Vi segnalo il seguente seminario (https://www.dss.uniroma1.it/it/node/8750) di domani 27 Marzo del prof. Enrico Scalas, che si terrà presso il Dipartimento di Scienze Statistiche (Sapienza Università di Roma, edificio CU002) in aula V, alle ore 12:00: *The Ehrenfest-Brillouin Model and its Applications* The Ehrenfest-Brillouin Model (EBM) is a framework for understanding complex systems. We begin by establishing a hierarchy of state descriptions, moving from individual descriptions to statistical descriptions before arriving at "frequencies of frequencies." This structural approach facilitates a rigorous definition of the EBM as a random dynamic process whose state space coincides with these world descriptions. The EBM is an irreducible and aperiodic Markov chain, ensuring the convergence to a unique stationary distribution regardless of the initial state. The EBM dynamics incorporates interaction parameters that allow the system to recover Maxwell-Boltzmann, Bose-Einstein, or Fermi- Dirac statistics depending on the degree of dependency between agents. The model’s stochastic rules naturally yield emergent phenomena such as power laws. Finally, we discuss the broad applicability of the EBM in physics and the social sciences, for example in modeling wealth distribution. The EBM provides a unifying bridge between the combinatorial foundations of statistical mechanics and socio-economic theory. Di seguito link per il collegamento online https://uniroma1.zoom.us/j/83625004899?pwd=bXCtz0 mp759PUh2lkqT0BUoVa0Uegg.1 Passcode: 123456 Buona serata, Lorenzo Facciaroni -- *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>*

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Reminder: spring school "Mathematical Aspects of Plasma Physics and Turbulence", May 4-8, 2026, Pisa
by Theresa Lange 26 Mar '26

26 Mar '26

Dear colleagues, With this I would like to remind you of the below event. Despite the previous announcement, there is still funding available for participants. Feel free to contact the organisers for further information. Kind regards Theresa Lange ——— Dr. Theresa Lange Research Group Leader (DFG Emmy-Noether-programme) Max Planck Institute for Mathematics in the Sciences Inselstr. 22 04103 Leipzig Germany theresalange(a)mis.mpg.de <mailto:theresalange@mis.mpg.de> >> Von: Theresa LANGE <theresa.lange(a)sns.it <mailto:theresa.lange@sns.it>> >> Betreff: Announcement of spring school "Mathematical Aspects of Plasma Physics and Turbulence", May 4-8, 2026, Pisa >> Datum: 9. Februar 2026 um 11:22:59 MEZ >> An: random(a)lists.dm.unipi.it <mailto:random@lists.dm.unipi.it> >> >> Dear colleagues, >> >> with this we would like to draw your attention to the following event: >> >> From May 4th-8th, 2026, we are organising the spring school “Mathematical Aspects of Plasma Physics and Turbulence”, to be held at Scuola Normale Superiore di Pisa. It will comprise three lecture series on mathematical models and techniques arising in plasma physics, and aims to bring together mathematicians and physicists with complementary expertise in these areas. >> >> The event shall be targeted at researchers in particular at early-career level, working in the fields of kinetic equations, scaling limits, diffusion processes, and pattern formation in partial differential equations. They will be able to share their work via presentation of a talk or a poster. Limited funding is available for accommodation. >> >> We would kindly like to ask you to forward this information to interested students and colleagues. Further information on the event can be found on the webpage https://indico.sns.it/event/139/. >> >> Registration is open until March 10th for those requiring funding, and latest until April 26th, under https://indico.sns.it/event/139/registrations/83/. >> >> Best wishes >> >> Franco Flandoli, Ciro Campolina, Federico Butori, Theresa Lange, Yassine Tahraoui >> >> — >> >> Dr. Theresa Lange >> Postdoctoral Researcher >> >> Group Prof. Franco Flandoli >> Scuola Normale Superiore >> Piazza dei Cavalieri 7 >> 56126 Pisa >> Italy

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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

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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 *************************************************

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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>*

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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

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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

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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

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