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Settimana 28/04/2025 - 02/05/2025

 

• Seminari

• Eventi

• Archivio Bollettini

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Seminari

 

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Nel link sottostante trovate la Newsletter n.3 del progetto di Dipartimento MatMod@TOV, con l'invito di leggerla e a darne massima diffusione:

Click below for PDF file Download:
NEWSLETTER n.3

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Università degli Studi Roma Tor Vergata
Dipartimento di Matematica

 

DocTorV SEMINAR

Date: 28th April 2025

Schedule: 14:30 - Rome Time

Where: Conference Room " 1200 "

Title: " Abelian varieties and the Schottky problem "

Speaker: Nelson Alvarado - Università degli Studi di Roma Tor Vergata

Abstract: Roughly speaking, algebraic geometry studies geometric objects (called varieties) which are contained in the projective space and are defined by polynomial equations. One of the most special kind of varieties are the abelian ones, whose points have the structure of a commutative group. One of the historical reasons of why abelian varieties are studied is because given a curve C one can construct a (polarized) abelian variety, which is called the Jacobian of C, and it turns out that this abelian variety encodes the geometry of the curve in a very precise way. In this introductory seminar we will talk about how jacobians are constructed, both from the topological and algebraic point of view, and discuss why they are so special.

Organizing Committee:
Arianna Vicari (mail to contact)
Andrea Pizzi (mail to contact)

Further Info and Program: For information contact to Arianna Vicari or Andrea Pizzi directly by E-mail.

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: 29th April 2025

Schedule: 14:30 - Rome Time -

Where:Conference Room "R. Dal Passo "

Title: "Nash equilibria, Mather measures and ergodic Mean-field games "

Speaker: Cristian Mendico - UNIVERSITÉ BOURGOGNE EUROPE

Abstract: In this presentation, we will analyze the various domains in which the ergodic mean field game (MFG) system arises. Specifically, we will explore how weak KAM theory can be used to study this system and derive results regarding long-time behavior or the approximation of Nash equilibria. Finally, we will introduce a quasi-stationary system—a model in which, at each moment, agents optimize their expected future cost under the assumption that their environment remains static.


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

 

Colloquium di Dipartimento

Date: 30th April 2025

Schedule:
First Seminar: 11:00 - Rome Time -
Second Seminar: 12:00 - Rome Time -

Where:Conference Room "R. Dal Passo "

FIRST SEMIMAR - h: 11:00

Title:" Concepts of quasi-local mass and quasi-local radius in Mathematical Relativity "

Speaker: Gerhard Huisken - MFO Oberwolfach e Università di Tubinga

Abstract: In General Relativity, Euclidean 3-space is replaced by a 3-dimensional Riemannian manifold arising as a space-like hypersurface in a Lorentzian space-time. Energy conditions on the space-time matter lead to curvature restrictions on the 3-manifold such as non-negativity of the scalar curvature. In this context it is important to find geometric structures resembling classical physical concepts such as mass and momentum both locally and globally to describe physically interesting phenomena like gravitational collapse in a way that is independent of coordinates. The lecture discusses new geometric concepts for the mass and diameter of a finite region of a 3-manifold that aim in this direction.


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

SECOND SEMIMAR - h: 12:00

Title:"Prescribing the Lorentzian mean curvature of a spacelike hypersurface, and the Born-Infeld model "

Speaker: Lorenzo Mari - Università di Milano - La Statale

Abstract: The talk aims to discuss the existence and regularity problem for spacelike hypersurfaces in Lorentz-Minkowski space whose mean curvature is a prescribed measure. The same equation also appears in Born-Infeld’s theory of electrostatics, according to which the unknown describes the electric potential generated by a given charge. Even though the problem is formally the Euler-Lagrange equation of a nice convex functional, the lack of smoothness when the graph becomes lightlike in Lorentz-Minkowski space may prevent the unique variational minimizer to solve the equation. A chief difficulty comes from the possible presence of “light segments” in the graph of the solution, a fact that we will describe in detail. Various open problems and research directions will be discussed. talk is based on joint works with J. Byeon, N. Ikoma, A. Malchiodi and L. Maniscalco.


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)
Sinestrari

Further Info and Program: Click here

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

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Eventi

 

 

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