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Settimana 02/03/2025 - 06/03/2025

 

• Seminari

• Eventi

• Archivio Bollettini

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Seminari

 

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Nel link sottostante trovate la Newsletter n.5 del progetto di Dipartimento MatMod@TOV, con l'invito di leggerla ed a darne massima diffusione:

Click below for PDF file Download:
NEWSLETTER n.5

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Università degli Studi Roma Tor Vergata
Dipartimento di Matematica

 

Geometry Seminar

Date: 03 March 2026

Schedule:
14:30 - 15:30 Rome Time

Where: Conference Room 1101 "C. D'Antoni"

Speaker: Wei Chen - Università di Roma Tre

Title: " Sottovarietà di intersezioni complete di grado alto "

Abstract:

Motivated by the Green-Griffiths and Lang-Vojta conjectures, it is expected that the algebraic exceptional set of a log-surface (X,B) of log-general type - which parametrizes rational curves on X meeting B in at most two points - is finite. In this talk, I will discuss recent results on this set for the cases where X is the projective plane or a Hirzebruch surface, and B is a curve with three irreducible components.
This talk is based on [arXiv.2507.13280] and work in progress.

Note: This talk is part of the activity of the MIUR Department of Excellence Project MatMod@TOV (2023-2027) and Prin 2022 Moduli Spaces and Birational Geometry and Prin PNRR 2022 Mathematical Primitives for Post Quantum Digital Signatures

Organizing Committee:
Codogni Giulio (Contact Mail)
Lido Guido Maria ( Contact Mail)
Francesca Carocci ( Contact Mail)

Further Information: Click here for geometry webpage

Streaming Link (MS Teams): This seminar will be held in person

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Università degli Studi Roma Tor Vergata
Dipartimento di Matematica

 

COMPLEX ANALYSIS SEMINAR

Date: 03 March 2026

Schedule: 16:00 - Rome Time

Where: Conference Room 2001

Title: "Universality in Transcendental Dynamics "

Speaker: Anna Miriam Benini University of Parma

Abstract: The Mandelbrot set is a fractal object encoding the dynamical behaviour of the family of quadratic polynomials z^2+c, where c is a parameter varying over the complex plane. It surprisingly appears also in the parameter spaces of all (reasonable) rational maps and in such sense, it also encodes the dynamical behaviour of this much larger class. The explanation is intricate and relies on the concept of renormalization: essentially, renormalization isolates and extrapolates the behaviour of a rational functions near its critical values, and brings it back to analogous behaviours for quadratic polynomials. In this work we present an analogous object for transcendental maps, which arises from a model family and yet encodes the dynamical behaviour of all (reasonable) families of transcendental meromorphic maps. This is joint work with M. Astorg and N. Fagella.

Organizing Committee:
Filippo Bracci (mail to contact)
Leandro Arosio (mail to contact)
Eleonora Di Nezza (mail to contact)

Further Info and Program: COMPLEX ANALYSIS SEMINAR page Click here

Streaming Link (MS Teams): This seminar will be held in person

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Università degli Studi Roma Tor Vergata
Dipartimento di Matematica

 

Operator Algebra Seminar

Date: 04th March 2026

Schedule: 16:00 - Rome Time

Where: Conference Room 1201" R. Dal Passo "

Title:" Construction of interacting equilibrium states for non-relativistic Bose gases with condensation "

Speaker: Stefano Galanda - University of York

Abstract:
In this talk I will present a recent construction of equilibrium states at positive temperature, with and without Bose-Einstein condensation, for a non-relativistic Bosonic QFT (gas of Bose particles) in the infinite volume limit, interacting through a localised two body interaction. In order to obtain this result, we use methods of quantum field theory in the algebraic formulation and of quantum statistical mechanics in the operator algebraic setting. The convergence of the interacting correlation functions is obtained constructing an equivalent perturbative series expansion introducing an auxiliary stochastic Gaussian field which mediates the interaction. Limits where the localisation of the two-body interaction is removed are eventually discussed in combination with other regimes.
This talk is based on a collaboration with Nicola Pinamonti.

Note: This talk is part of the activity of the MUR Excellence Department Project MatMod@TOV (CUP E83C23000330006)

Organizing Committee:
Vincenzo Morinelli (mail to contact)
Roberto Longo (mail to contact)
Daniele Guido (mail to contact)
Giuseppe Ruzzi (mail to contact)
Sebastiano Carpi (mail to contact)

Further Info: Click here for Operator Algebras Seminar Page

Streaming Link (MS Teams): This seminar will be held in person

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Università degli Studi Roma Tor Vergata
Dipartimento di Matematica

 

DIFFERENTIAL EQUATIONS SEMINAR

Date: 3 March 2026

Schedule: 14:30 - Rome Time

Where: Conference Room "R. Dal Passo "

Title: " _Stochastic Controlled Delay Equations: Optimal Control, Mean Field Control, Mean Field Games_ "

Speaker: Fausto Gozzi - L.U.I.S.S.

Abstract: We present some recent results on optimal control/differential games in cases where the state equation is a stochastic delay differential equation (SDDE) with delay in the state and/or in the control. We look at two possible approaches: one based on partial smoothing properties of the transition semigroup associated with the uncontrolled SDDE (papers on optimal control , mean field control, mean field games without common noise with G. Bolli, F. Masiero, M. Ricciardi, M. Rosestolato), one based on regularization of viscosity solutions (paper with F. De Feo, A. Swiech, L. Wessels, on mean field control with only common noise). .

Nota: Questo seminario fa parte delle attività finanziate dal progetto MIUR Dipartimento d'eccellenza MatMod@TOV (2023-27) CUP E83C23000330006
Note: This talk is part of the activity of the MIUR Excellence Department Project MatMod@TOV (2023-27) CUP E83C23000330006

Organizing Committee:
Riccardo Molle (mail to contact)
Alfonso Sorrentino (mail to contact)

Further Info and Program: Click here

Streaming Link (MS Teams): This seminar will be held in person

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Università degli Studi Roma Tor Vergata
Dipartimento di Matematica

 

Ro.Ma.D.S. - Rome Centre on Mathematics for Modelling and Data ScienceS Seminar

Date: 2nd March 2026

Schedule: 14:00 Rome Time

Where: ROOM 1201 "R. Dal Passo"

Title: " Conditional propagation of chaos for mean field systems of interacting neurons "

Speaker: Eva Löcherbach - Université Paris 1 - Panthéon-Sorbonne

Abstract:

Joint work with Dasha Loukianova and Elisa Marini We consider a system of N interacting particles, described by SDEs driven by Poisson random measures, where the coefficients depend on the empirical measure of the system. Every particle jumps with a jump rate depending on its position. When this happens, all the other particles of the system receive a small random kick which is distributed according to a random variable belonging to the domain of attraction of an alpha-stable law, suitably scaled, for some alpha in between 0 and 2. We call these jumps ''collateral jumps''. Moreover, the jumping particle itself undergoes a macroscopic, ''main'' jump. Such systems appear in the modeling of large neural networks, such as the human brain. I will discuss how the system behaves in the large population limit, and how this limiting behavior depends on the value of alpha. In particular, using a representation of the collateral jump sum as a time-changed random walk, I will explain how we obtain convergence in law, in Skorokhod space, of the system to a limit infinite-exchangeable system of SDEs driven by a common stable process (or a common Brownian motion) which arises due to the central limit theorem and constitutes a common noise term in the dynamics of all the limit particles. Finally, I will discuss how this is related to the property of ''conditional propagation of chaos’'.
Nota: Questo seminario fa parte delle attività finanziate dal progetto MIUR Dipartimento d'eccellenza MatMod@TOV (2023-27) CUP E83C23000330006
Note: This talk is part of the activity of the MIUR Excellence Department Project MatMod@TOV (2023-27) CUP E83C23000330006

Organizing Committee:
Domenico Marinucci contact Mail
Michele Salvi contact Mail

Stefano Vigogna contact Mail

Further Info and Program: Click here for RoMaDS event Page

Streaming Link (MS Teams): Link TEAMS Click here for Link

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Università degli Studi di Roma "Tor Vergata"
Dipartimento di Matematica

 

Algebra and Representation Theory Seminar

Date: Friday 06 March 2026

Schedule:
FIRST SEMINAR 14:30 Rome Time

SECOND SEMINAR 16:00 Rome Time

Where: Conference Room 1201 - R. Dal Passo

FIRST SEMINAR 14:30 Rome Time -

Speaker: Azzurra Ciliberti - Ruhr-Universität Bochum

Title: " A multiplication formula for cluster characters in gentle algebras "

Abstract:

Gentle algebras, introduced by Assem and Skowro?ski, are a well-loved class of algebras. They are string algebras, so their module categories are combinatorially described in terms of strings and bands, they are tiling algebras associated with dissections of surfaces, and they have many other remarkable properties. Furthermore, Jacobian algebras arising from triangulations of unpunctured marked surfaces are gentle. In the talk, I will present a multiplication formula for cluster characters induced by generating extensions in a gentle algebra A. This formula generalizes a previous result of Cerulli Irelli, Esposito, Franzen, Reineke. Moreover, in the case where A comes from a triangulation T, it provides a representation-theoretic interpretation of the exchange relations in the cluster algebra with principal coefficients in T.

Note: this talk is part of the activity of the MIUR Excellence Department Project MatMod@TOV (CUP E83C23000330006).


SECOND SEMINAR 16:00 Rome Time - joint session with the "Topology Seminar" -

Speaker: Victor Turchin - Kansas State University

Title: " T.B.A. "

Abstract:

T.B.A.

Note: this talk is part of the activity of the MIUR Excellence Department Project MatMod@TOV (CUP E83C23000330006).

Organizing Committee: Fabio Gavarini (mail to)
Niels Kowalzig (mail to)
Martina Lanini (mail to)

Further Info: Click here for A.R.T.S. Webpage

Streaming Link (MS Teams): This seminar will be held in person

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Eventi

 

 

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