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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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