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Seminario Maurice Duits Sapienza
by Gustavo Posta 17 Nov '25

17 Nov '25

Dear all, On Monday November 24, Maurice Duits (http://www.math.kth.se/~duits) will give a seminar at the Department of Mathematics "Guido Castelnuovo" (Sapienza Università di Roma). Please find the details below. GP ************************************************ Monday November 24 2025 16:15, Sala Consiglio del Dipartimento di Matematica "Guido Castelnuovo" Sapienza Università di Roma Speaker: Maurice Duits Title: The Gamma disordered Aztec diamond Abstract: The Aztec diamond, under the uniform measure on domino tilings, is one of the classic examples of an exactly solvable model in probability and statistical mechanics. Its rich geometric features—such as limit shapes and arctic boundaries—have long made it a cornerstone of integrable probability. More recently, variants of this model with doubly periodic weights have revealed that much of the underlying structure persists far beyond the uniform case and can be used to uncover new behaviors—such as regions with smooth disorder—that were previously out of reach. At the heart of these models lies a birational map that encodes their integrable character. In this talk, I will present a new disordered version of the Aztec diamond obtained by placing Gamma-distributed weights on its edges. Remarkably, these random weights preserve just enough structure to keep the model integrable, This allows us to provide rigorous confirmation of predictions from the physics literature—such as the absence of a phase transition in the free energy—and explain the emergence of n^2/3 fluctuations near the turning points. Remarkably, these turning points are related to certain integrable polymer models. The presentation is aimed at a broad mathematical audience and is based on on joint work with Roger van Peski. ************************************************ ---------------------------------------------------------------- Gustavo Posta Dipartimento di Matematica Università di Roma "la Sapienza" P.le A. Moro 2, 00185 Roma Italy web: http://www1.mat.uniroma1.it/~posta e-mail: gustavo.posta(a)uniroma1.it phone: +39-06-4991-4969 ----------------------------------------------------------------- -- *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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Enrico Priola Seminar Thursday 27th November 12h at Mathematics Department in Bologna
by Cristina Di Girolami 17 Nov '25

17 Nov '25

Dear all, Thursday 27th November 12h at Mathematics Department in Bologna, Professor Enrico PRIOLA will give the seminar with title: Regular stochastic flow and Dynamic Programming Principle for jump diffusions. It will be possible to follow in presence in Piazza di Porta San Donato, 5, Aula Arzelà (5th floor) and online at the following link: https://teams.microsoft.com/l/meetup-join/19%3ameeting_NmVjNDQ2YzItNzg5ZS00… https://teams.microsoft.com/l/meetup-join/19%3ameeting_OGM4YTlkZjUtZDA1ZS00… https://teams.microsoft.com/dl/launcher/launcher.html?url=%2F_%23%2Fl%2Fmee… ID riunione: 324 525 375 668 6 Passcode: Ha9rL3AR Best regards Cristina Di Girolami ------------------------------------------------------------- Cari tutti, giovedì 27 ore 12, il Professore Enrico PRIOLA (Università di Pavia) terrà il seguente seminario: Title: Regular stochastic flow and Dynamic Programming Principle for jump diffusions. In presenza al Dipartimento di Matematica di Bologna (Porta San Donato 5) in aula Arzelà (quinto piano) e da remoto https://teams.microsoft.com/l/meetup-join/19%3ameeting_OGM4YTlkZjUtZDA1ZS00… https://teams.microsoft.com/l/meetup-join/19%3ameeting_OGM4YTlkZjUtZDA1ZS00… https://teams.microsoft.com/l/meetup-join/19%3ameeting_NmVjNDQ2YzItNzg5ZS00… ID riunione: 324 525 375 668 6 Passcode: Ha9rL3AR Cordiali saluti, Cristina Di Girolami

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Special issue on "Ising Model at 100"
by Cristian GIARDINA' 17 Nov '25

17 Nov '25

Dear colleague, We are delighted to bring to your attention a special issue of the journal Mathematical Physics, Analysis and Geometry (MPAG) on the occasion of Ising Model’s centenary. [image: ISINGat100-2.jpg] The special issue can be accessed and freely downloaded at: https://link.springer.com/journal/11040/updates/27825832 Best wishes Siva Athreya, Cristian Giardinà (On Behalf of the Editorial Board)

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Fwd: Conference announcement in Pisa-mailing list
by Theresa LANGE 17 Nov '25

17 Nov '25

Dear colleagues, Please find attached the announcement of an early career researchers' conference in Sweden in 2026. Kind regards Theresa Lange > Von: Marco Rehmeier <rehmeier(a)tu-berlin.de> > Betreff: Conference announcement > > Dear PhD students and Postdocs, > > We would hereby like to draw your attention to the 3rd edition of the > > Young Summer School on Stochastic Analysis > to be held 10.-13.06.2026 in Växjö, Sweden. > > The summer school is targeted at PhD-students and PostDocs working in stochastic analysis and related fields. We want to bring junior researchers together in a special environment in order to foster scientific exchange and networking. The school will include a lecture series by Prof. Michael Röckner (Bielefeld), a scientific soft skill course and a conference dinner. Participants are encouraged to give a talk or to present a poster. > > Participation is free, but registration is mandatory via the following link: https://forms.gle/2v6f2k4dj5myQnxk9 > > We would be delighted to see you next summer in beautiful Växjö! In case of any questions, feel free to contact us via ysssa2026(a)gmail.com <mailto:ysssa2026@gmail.com>. For more information, see https://sites.google.com/view/ysssa26/start > > Kind regards, > Ihsan Arharas, Wolfgang Bock, Sebastian Grube, Marco Rehmeier

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Seminario on-line PRISMA lunedì 1 dicembre 2025 - Ilya Chevyrev & Hao Shen
by Sonia Mazzucchi 17 Nov '25

17 Nov '25

Seminari on-line del gruppo UMI - PRISMA (http://www.umi-prisma.polito.it/) 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. Dallo scorso anno le registrazioni dei seminari vengono pubblicate sul canale YouTube dell'UMI: https://youtube.com/playlist?list=PLmySpc-jrtAMq84VH71evyqPc1hl6eEQb Il prossimo appuntamento è per *lunedì 1 dicembre* 2025. I relatori saranno *Ilya Chevyrev* (Sissa - Trieste) e *Hao Shen* (University of Wisconsin-Madison) che parleranno di: *Stochastic quantisation of gauge theories* *.* 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/84292750177 ID riunione: 842 9275 0177 Codice d’accesso: 549245 Vi aspettiamo numerosi! Alberto Chiarini e Sonia Mazzucchi %%%%%%%%%%%%%%%%%%%%%%%%%%%% RELATORI: Ilya Chevyrev (Sissa - Trieste) e Hao Shen (University of Wisconsin-Madison) TITOLO: Stochastic quantisation of gauge theories RIASSUNTO: We will give an introduction to gauge theories, especially Yang-Mills theory, from a probabilistic perspective. Gauge theories arise in physics, where they are used to describe elementary particles, and correspondingly provide many rich problems in mathematics, including in probability and analysis. We will survey recent results on the interaction between quantum Yang-Mills theory and stochastic analysis, especially the field of singular stochastic PDEs. We will describe how the stochastic quantisation equations associated to the 2D and 3D Euclidean Yang-Mills theories can be solved in a geometrically faithful way and what these equations can teach us about the quantum field theory.

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SPASS Seminar: Matteo Palmieri
by Francesco Grotto 16 Nov '25

16 Nov '25

Dear Colleagues, We would like to invite you to the following SPASS seminar, *On minimizing curves in a Brownian potential* by Matteo Palmieri (Max Planck Inst. Lepzig), WED 19.11.2025 at 14:00 CET in Saletta Riunioni, Dipartimento di Matematica, UNIPI. Best, Francesco Grotto on behalf of the organizers https://sites.google.com/unipi.it/spass ---------------------------------------------------------------- /Abstract: We study a (1+1)-dimensional semi-discrete random variational problem that can be interpreted as the geometrically linearized version of the critical 2-dimensional random field Ising model (at zero temperature). We show that at every dyadic scale from the system size down to the lattice spacing the minimizer contains at most order-one Dirichlet energy per unit length, leading to a logarithmic scaling of the minimal energy. Using super-additivity in the scales, this allows us to establish a quenched homogenization result in the sense that he leading order of the minimal energy becomes deterministic as the ratio system size/lattice spacing diverges. This is joint work with Felix Otto and Christian Wagner./

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Reminder: OWPS's seminar starting soon
by Federico Sau 13 Nov '25

13 Nov '25

Dear all, This is a reminder for today's seminar by Tomas Berggren (South Florida) and Béatrice de Tilière (Paris Dauphine), starting soon (at 15:00 Rome time). Titles are, respectively: Gaussian free field and discrete Gaussians in periodic dimer models and Fock's dimer model on the Aztec diamond. All info here: https://www.owprobability.org/one-world-probability-seminar. Looking forward to seeing many of you! Best, the organizers

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OWABI - Clara Grazian - November 27 - 11am UK time
by Massimiliano Tamborrino 13 Nov '25

13 Nov '25

Dear all, the next OWABI seminar www.warwick.ac.uk/owabi<http://www.warwick.ac.uk/owabi> is quickly approaching! Our next speaker is Clara Grazian<https://www.sydney.edu.au/science/about/our-people/academic-staff/clara-gra…> (University of Sidney), who will talk about "Approximate Bayesian Computation with Statistical Distances for Model Selection" on Thursday the 27th November at 11am UK time, with an abstract reported below. Abstract: Model selection is a key task in statistics, playing a critical role across various scientific disciplines. While no model can fully capture the complexities of a real-world data-generating process, identifying the model that best approximates it can provide valuable insights. Bayesian statistics offers a flexible framework for model selection by updating prior beliefs as new data becomes available, allowing for ongoing refinement of candidate models. This is typically achieved by calculating posterior probabilities, which quantify the support for each model given the observed data. However, in cases where likelihood functions are intractable, exact computation of these posterior probabilities becomes infeasible. Approximate Bayesian computation (ABC) has emerged as a likelihood-free method and it is traditionally used with summary statistics to reduce data dimensionality, however this often results in information loss difficult to quantify, particularly in model selection contexts. Recent advancements propose the use of full data approaches based on statistical distances, offering a promising alternative that bypasses the need for handcrafted summary statistics and can yield posterior approximations that more closely reflect the true posterior under suitable conditions. Despite these developments, full data ABC approaches have not yet been widely applied to model selection problems. This paper seeks to address this gap by investigating the performance of ABC with statistical distances in model selection. Through simulation studies and an application to toad movement models, this work explores whether full data approaches can overcome the limitations of summary statistic-based ABC for model choice. Keywords: model choice, distance metrics, full data approaches Reference: C. Grazian, Approximate Bayesian Computation with Statistical Distances for Model Selection, preprint at ArXiv:2410.21603, 2025 The talk will be hosted on MS Teams Link: OWABI - Clara Grazian - Approximate Bayesian Computation with Statistical Distances for Model Selection | Meeting-Join | Microsoft Teams<https://teams.microsoft.com/meet/36518340835776?p=V9GRQQoSQKpFBofF2W> Meeting ID: 365 183 408 357 76 Passcode: 6Fg9nW7T 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 Lucas D'Alimonte, Lunedì 17 Novembre, Sapienza Università di Roma
by Silvestri, Vittoria 13 Nov '25

13 Nov '25

Segnalo il seguente seminario, che si terrà Lunedì prossimo in Sapienza. *Lunedì 17 Novembre, ore 16:15,* Sala di Consiglio, Dipartimento di Matematica, Sapienza Università di Roma *Speaker:* Lucas D'Alimonte (LPSM Sorbonne Université) *Title:* Ornstein—Zernike theory for the near-critical planar random cluster model *Abstract:* In this talk, we will discuss the classical Ornstein-Zernike theory for the random-cluster model (also known as FK percolation). In its modern form, it is a very robust theory, which most celebrated output is the computation of the asymptotically polynomial corrections to the pure exponential decay of the two-points correlation function of the random-cluster model in the subcritical regime. We will present an ongoing project that extends this theory to the near-critical regime of the two-dimensional random-cluster model, thus providing a precise understanding of the Ornstein-Zernike asymptotics when papproaches the critical parameter p_c. The output of this work is a formula encompassing both the critical behaviour of the system when looked at a scale negligible with respect to its correlation length, and its subcritical behaviour when looked at a scale way larger than its correlation length. Based on a joint work with Ioan Manolescu. ******************************** Vittoria Silvestri Associate Professor Department of Mathematics University "La Sapienza" Piazzale Aldo Moro, 5 00185 - Rome ********************************

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DeFi & Crypto Workshop at SNS
by Daniele Maria DI NOSSE 11 Nov '25

11 Nov '25

Dear all, we are pleased to announce the first edition of the *DeFi & Crypto Workshop* that will be held at Scuola Normale Superiore (Pisa, Italy) *from 26/01/2026 to 28/01/2026*. The workshop aims to bring together both the academia and the industry working on decentralized finance and crypto. We invite researchers to submit extended abstracts/full papers on topics including but not limited to: - Decentralized Finance protocols and smart contracts - Decentralized Exchanges and Automated Market Makers - Liquidity provision, slippage, and Maximal Extractable Value - Risk modeling and systemic risk in Decentralized Finance - Market microstructure of crypto exchanges (Centralized/Decentralized Exchanges) - Agent-based modeling, econophysics, complexity science, and network effects in crypto ecosystems - Token economics, governance, NFTs, and digital assets - Interaction between regulatory authorities, cryptocurrencies, and stablecoins *IMPORTANT DATES* *Paper/Extended Abstract Submission Deadline*: 2025-12-08 *Notification of Acceptance*: 2025-12-20 *Registration Deadline*: 2026-01-07 *Fee Payment Deadline*: 2026-01-16 All submissions will undergo peer review by the Scientific Committee, composed by Davide Barone Agostino Capponi Daniele Maria Di Nosse Marco Franceschello Federico Gatta Fabrizio Lillo Manuel Naviglio Gianluca Palmari Francesco Tarantelli *MORE INFORMATION* Website: DeFi & Crypto Workshop <https://sns-defi.github.io/> Email: sns-defi(a)gmail.com Best regards, DeFi & Crypto workshop organizers

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