Bollettino settimanale
Pagina d'informazione di seminari ed eventi scientifici che avranno luogo settimanalmente per lo più in area romana.
Per la pubblicazione rivolgersi a Giorgio Chiarati che ne cura la gestione.
Per consultare la pagina di tutti i seminari di Dipartimento Click here.
Settimana 27/04/2026 - 01/05/2026
Seminari
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
Università degli Studi Roma Tor Vergata
Dipartimento di Matematica
Geometry Seminar with COMPLEX ANALYSIS seminar
Date: 28 April 2026
Schedule:
14:30 Rome Time
Where: Conference Room 1101 "C. D'Antoni"
Speaker: Sébastien Boucksom - Institut de Mathématiques de Jussieu
Title: "Around the Yau-Tian-Donaldson conjecture "
Abstract:
The YTD conjecture predicts that the existence of "canonical" Kähler metrics on a polarized projective manifold is governed by a purely algebro-geometric notion known as K-stability. Recently, solutions to (variants of) this conjecture have been proposed,
and the purpose of this talk is to review this recent 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)
Antonio Trusiani ( Contact Mail)
Further Information: Click here for geometry webpage
Streaming Link (MS Teams): This seminar will be held in person
Università degli Studi Roma Tor Vergata
Dipartimento di Matematica
Colloquium "Levi-Civita"
Date: 29 April 2026
Schedule: 16:00 - Rome Time
Where: Conference Room 1201 "R. Dal Passo "
Speaker: Mikael Rørdam - University of Copenhagen
Title: "Classical and quantum learning problems via harmonic analysis "
Abstract:
In his seminal classification paper from 1976, Connes remarked
that every separable tracial von Neumann algebra ought to be embeddable
into an ultrapower of the hyperfinite type II_1 factor, or, in other words,
be approximable by matrices. Over the following decades, the Connes
Embedding Problem (CEP) remained unsolved, but many interesting and deep
reformulations were discovered. Prominently, Kirchberg proved in his famous
1991 Inventiones paper that CEP is equivalent to several questions
concerning C*-algebras and their tensor product, including his QWEP
conjecture. He also showed that CEP holds if and only if there is a unique
C*-norm of the tensor product of two copies of the full group C*-algebra of
the free group. The latter was shown (by several authors) to be equivalent
to Tsirelson’s conjecture about quantum correlations. CEP also relates to
the open problems in group theory if all infinite discrete groups are
sofic. Recently, Ji-Natarajan-Vidick-Wright-Yuen announced a negative
solution to Tsirelson’s conjecture, and hence also a negative answer to CEP
by proving that two complexity classes are the same.
Note: This colloquium is part of the activity of the MUR Excellence Department Project MATH@TOV CUP E83C23000330006
Organizing Committee:
Alessandro Pizzo(Contact Mail)
Vincenzo Morinelli (mail to contact)
Further Information: Click here for Webpage
Streaming Link (MS Teams): This seminar will be held in person
Università degli Studi Roma Tor Vergata
Dipartimento di Matematica
Mathematical Physics Seminar
Date: 30 April 2026
Schedule: 16:00 - Rome Time
Where: Conference Room: "
Title:" Beyond linear response: an Ohm's law for quantum Hall currents "
Speaker: Stefan Teufel - University of Tubingen
Abstract:
I will present a recent result that establishes a form of Ohm's
law for the quantum Hall current in models of interacting fermions on a
lattice at zero temperature. I will focus on two novel aspects: defining
the Hall current properly in order to go beyond linear response
calculations and computing this current to all orders in perturbation
theory. These two aspects are both based on the concept of non-equilibrium
almost stationary states, a form of 'many-body resonance' for
infinite-volume quantum systems.
N.B.: This talk is part of the activity of the MIUR Excellence Department Project Mat-Mod@TOV (CUP E83C23000330006).
Organizing Committee:
Giorgio Cipolloni (mail to contact)
Further Info and Program: For information contact Giorgio Cipolloni directly by E-mail.
Streaming Link (MS Teams): This seminar will be held in person
Università degli Studi Roma Tor Vergata
Dipartimento di Matematica
DIFFERENTIAL EQUATIONS SEMINAR
Date: 28 April 2026
Schedule: 14:30 - Rome Time
Where: Conference Room "R. Dal Passo "
Title: "Recovering insolation functions in Sellers climate models "
Speaker: Judith Vancostenoble - Université de Toulouse
Abstract:
We are interested in climate models introduced by Sellers in
1969 which takes the form of some nonlinear parabolic equation with a
degenerate diffusion coefficient. We investigate here some inverse problem
issue that consists in recovering the so-called insolation function. We not
only solve the uniqueness question but also provide some strong stability
result, more precisely unconditional Lipschitz stability.
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
Eventi
Università degli Studi di Roma "Tor Vergata"
Dipartimento di Matematica
PhD Defense
Date: 27/04/2025
Schedule: 11:30 Rome Time
Where: Conference 1201 - Room dedicated R. Dal Passo
Speaker: Giusi Capobianco - Università degli Studi di Roma "Tor Vergata"
Title: Tropical Prym varieties and hyperelliptic curves
Abstract:
In this talk I will present some results contained in my PhD thesis. I
will first introduce double covers of curves and graphs and then talk about
Prym varieties and the Abel-Prym map, which is joint work with Yoav Len. I
will then give an explicit and intrinsic way of constructing the tropical
Prym variety that is continuous under degeneration. As a result we obtain
the continuity of the tropical Prym-Torelli map. Additionally, I will give
an overview of tropical Brill-Noether theory focusing on the tropical
version of Martens' theorem solving a conjecture stated by Jensen and Len
with a strict assumption on the degree of the divisor. This is joint work
with Angelina Zheng