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Settimana 26/02/2024 - 01/03/2024
Seminari
Università degli Studi Roma Tor Vergata
Dipartimento di Matematica
DIFFERENTIAL EQUATIONS SEMINAR
Date: 27th February 2024
Schedule: 16:00 - Rome Time
Where: Conference Room "R. Dal Passo"
Title: " Applications of Local Entropy Theory "
Speaker: Dario Darji University of Louisville (US)
Abstract:
Local entropy theory is a culmination of deep results in dynamics, ergodic theory and combinatorics.
Given a dynamical system with positive entropy, it gives, in some sense, the location of where the entropy resides.
It is a powerful tool that can be applied in a variety of settings. In this talk, we will show how the speaker (with his co-authors)
has been able to apply local entropy theory to settle some problems in continuum theory, and in dynamics of maps on the space of finite measures.
Nota: Questo seminario fa parte delle attività finanziate dal progetto MIUR Dipartimento d'eccellenza MATH@TOV CUP E83C23000330006
Note: This talk is part of the activity of the MIUR Excellence Department Project MATH@TOV 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
Università degli Studi Roma Tor Vergata
Dipartimento di Matematica
Operator Algebras Seminar
Date: 28th February 2024
Schedule: 16:00 - Rome Time
Where: Conference Room 1201 "R. Dal Passo"
Title: " On Atiyah sequences of braided Lie algebras and their splittings "
Speaker: Giovanni Landi - Trieste University
Abstract:
To an equivariant noncommutative principal bundle one
associates an Atiyah sequence of braided derivations whose
splittings give connections on the bundle. There is an explicit
action of vertical braided derivations as infinitesimal gauge
transformations on connections. From the sequence one
derives a Chern—Weil homomorphism and braided Chern—
Simons terms.
On the principal bundle of orthonormal frames over the
quantum sphere S^{2n}_\theta, the splitting of the sequence
leads to a Levi-Civita connection on the corresponding
module of braided derivations. The connection is torsion free
and compatible with the `round' metric. We work out the
corresponding Riemannian geometry.
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)
Further Info: Click here for Operator Algebras Seminar Page
Streaming Link (MS Teams): This seminar will be held in person
Università degli Studi di Roma "Tor Vergata"
Dipartimento di Matematica
Algebra and Representation Theory Seminar
Date: Friday March 1st, 2024
Schedule: 14:30 Rome Time
Where: Conference Room 1201 “Roberta Dal Passo”
Speaker: Timm PEERENBOOM (Ruhr-Universität - Bochum)
Title: " "
Abstract:
In this talk I give a description of the semistable Cohomological Hall algebra (CoHa) for extended Dynkin quivers with central slope in terms of generators and relations. This extends work of Franzen-Reineke who dealt with the case of the Kronecker quiver.
Organizing Committee:
Fabio Gavarini (mail to)
Niels Kowalzig (mail to)
Martina Lanini (mail to)
Further Info: Click here for webpage
Streaming Link (MS Teams): This seminar will be held in person
Università degli Studi di Roma "Tor Vergata"
Dipartimento di Matematica
Algebra and Representation Theory Seminar
Date: Friday March 1st, 2024
Schedule: 16:00 - Rome Time
Where: Conference Room 1201 “Roberta Dal Passo”
Speaker: Matteo MICHELI - “Sapienza” Università di Roma
Title: "Degenerations of the classical Grassmannians and their isotropic subvarieties"
Abstract:
This talk is based on joint work in progress with E. Feigin, M. Lanini and A. Pütz. We analyze a family of Quiver Grassmannians for the equioriented cycle, which are degenerations of the classical Grassmannians: for each one, we describe its irreducible components, find a cellular decomposition in terms of attracting sets, and give an overview of the underlying combinatorics. Then we introduce symplectic conditions and try to understand the associated subvarieties, which are degenerations of the classical isotropic Grassmannians.
Organizing Committee:
Fabio Gavarini (mail to)
Niels Kowalzig (mail to)
Martina Lanini (mail to)
Further Info: Click here for webpage
Streaming Link (MS Teams): This seminar will be held in person
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