Bollettino settimanale
Settimana 13/02/2022 - 17/02/2022
Seminari
Università degli Studi Roma Tor Vergata
Dipartimento di Matematica
Seminar on Differential Equations
Date: 14 Febraury 2023
Schedule: 16:00 - Rome Time
Where: Conference Room 1201 - "R. Dal Passo"
Title: " Asymptotic behavior of solutions to the Yamabe equation in low dimensions. "
Speaker: Lei Zhang (University of Florida)
Abstract: In this talk I will report recent progress on the Yamabe equation defined either
on a punctured disk of a smooth manifold or outside a compact subset of R^n with an asymptotically flat metric.
What we are interested in is the behavior of solutions near the singularity.
It is well known that the study of the Yamabe equation is sensitive to the dimension of the
manifold and is closely related to the Positive Mass Theorem.
In my recent joint works with Jingang Xiong (Beijing Normal University) and Zhengchao Han (Rutgers) we proved dimension-sensitive results and our work showed connection to other problems.
Organizing Committee:
Riccardo Molle (mail to contact)
Alfonso Sorrentino (mail to contact)
Further Info and Program:
Click here for Differential Equations Web page
Streaming Link (MS Teams): This seminar will be held in person
Università degli Studi di Roma "Tor Vergata"
Dipartimento di Matematica
Geometry Seminar
Date: 07 February 2023
Schedule: 14:30 Rome Time
Where: Conference Room 1201 "Roberta Dal Passo"
Speaker: Eleonora Romano (Università di Genova)
Title: " Recent results on Fano varieties "
Abstract: In this talk we present some recent results on complex
smooth Fano varieties. To this end, we first recall an invariant
introduced by Casagrande, called Lefschetz defect. We review the
literature to deduce that all Fano manifolds with Lefschetz defect
greater than three are well known. Then we focus on the case in which
the Lefschetz defect is equal to three, by discussing a structure
theorem for such varieties. As an application, we use this result to
classify all Fano 4-folds with Lefschetz defect equal to three: there
are 18 families, among which 14 are toric.
This is a joint work with C. Casagrande and S. Secci.
Organizing Committee:
Codogni Giulio (Contact Mail)
Lido Guido Maria ( Contact Mail)
Onorati Claudio ( Contact Mail)
Further Information: Click here for geometry webpage
NOTE: For more information contact: Lido: Click here for mail
Streaming Link (MS Teams): This seminar will be held in person
Università degli Studi di Roma "Tor Vergata"
Dipartimento di Matematica
RoMaDS - Rome Centre on Mathematics for Modelling and Data ScienceS
Date: February 15 2023
Schedule: 14:00 Rome Time
Where: Conference Room 1201 “Roberta Dal Passo”
Speaker: Francesco Vaccarino (Politecnico di Torino)
Title: " Hodge-Shapley game: a Laplacian-based Shapley-like associated game for eXplainable AI "
Abstract: In cooperative game theory, a set of players or decision-makers should negotiate to decide
how to allocate the worth gained by the coalition composed of all the players. A value is a solution concept that suggests the
outcome of the negotiation among players. Among the many existing alternative solution concepts, it is prevalent the Shapley value
solution concept. Its popularity also derives from the property of being a fair allocation, where a set of desirable properties or
axioms describes fairness. The axioms characterize the Shapley value in the sense that it is the unique value satisfying those properties;
at the same time, the axioms allow deriving a simple explicit combinatorial formula to compute the Shapley value. In our approach, coalitions
are the main subjects of cooperation, instead of single players, and, inspired by the Shapley value, the goal is to derive a fair associated game,
i.e. an allocation to coalitions satisfying a set of desirable properties. The methodology is based on using the Hodge decomposition of the simplicial
complex associated with the partially ordered set of the subsets of the set of players ordered by inclusion. We will motivate this investigation
within the framework of Explainable Artificial Intelligence (XAI).
Joint work with Antonio Mastropietro (Eurecom - F)
"The seminar is part of the Excellence Project Math@TOV"
Organizing Committee:
Domenico Marinucci (coordinator)
Filippo Bracci
Piermarco Cannarsa
Lucia Caramellino
Andrea Clementi
Alessio Farcomeni
Giorgio Gambosi
Carla Manni
Paolo Pigato
Michele Salvi
Benedetto Scoppola
Alfonso Sorrentino
Hendrik Speleers
Stefano Vigogna
Nicola Vittorio
NOTE: For more information contact: Michele Salvi
Further Info: Click here
Streaming Link (MS Teams): Streming link This seminar will be held MIX mode: in person and streaming
Eventi
Università degli Studi di Roma "Tor Vergata"
Dipartimento di Matematica
Corso di Dottorato
Reading course on Birational Geometry
Period: 2023.10.01 - 2023.06.06
Schedule:
| Day | Time and Room |
|---|---|
| 2023.10.01 | h:14:30/15:30 Conference Room 1103 "F.DE Blasi" |
| 2023.17.01 | h: 11:00/13:00 Conference Room 1103 "F.DE Blasi" |
| 2023.24.01 | h: 11:00/13:00 Conference Room 1103 "F.DE Blasi" |
| 2023.31.01 | h: 11:00/13:00 Conference Room 1103 "F.DE Blasi" |
| 2023.17.02 | h: 11:00/13:00 Conference Room 1103 "F.DE Blasi" |
| 2023.07.02 | h: 11:00/13:00 Conference Room 1103 "F.DE Blasi" |
| 2023.14.02 | h: 11:00/13:00 Conference Room 1103 "F.DE Blasi" |
| 2023.21.02 | h: 11:00/13:00 Conference Room 1103 "F.DE Blasi" |
| 2023.28.02 | h: 11:00/13:00 Conference Room 1103 "F.DE Blasi" |
| 2023.07.03 | h: 11:00/13:00 Conference Room 1103 "F.DE Blasi" |
| 2023.14.03 | h: 11:00/13:00 Conference Room 1103 "F.DE Blasi" |
| 2023.21.03 | h: 11:00/13:00 Conference Room 1103 "F.DE Blasi" |
| 2023.28.03 | h: 11:00/13:00 Conference Room 1103 "F.DE Blasi" |
| 2023.04.04 | h: 11:00/13:00 Conference Room 1103 "F.DE Blasi" |
| 2023.11.04 | h: 11:00/13:00 Conference Room 1103 "F.DE Blasi" |
| 2023.18.04 | h: 11:00/13:00 Conference Room 1103 "F.DE Blasi" |
| 2023.02.05 | h: 11:00/13:00 Conference Room 1103 "F.DE Blasi" |
| 2023.09.05 | h: 11:00/13:00 Conference Room 1103 "F.DE Blasi" |
| 2023.16.05 | h: 11:00/13:00 Conference Room 1103 "F.DE Blasi" |
| 2023.23.05 | h: 11:00/13:00 Conference Room 1103 "F.DE Blasi" |
| 2023.30.05 | h: 11:00/13:00 Conference Room 1103 "F.DE Blasi" |
| 2023.06.06 | h: 11:00/13:00 Conference Room 1103 "F.DE Blasi" |