Bollettino settimanale

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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 08/05/2022 - 12/05/2022

 

 

Seminari

Università degli Studi Roma Tor Vergata
Dipartimento di Matematica

 


DIFFERENTIAL EQUATIONS SEMINAR AND COMPLEX ANALYSIS SEMINAR

Date: 09 May 2023
Schedule: 14:30 - Rome Time
Where: Conference Room "R. Dal Passo"
Title: " Constant mean curvature hypersurfaces in H^n x R with small planar boundary "
Speaker: Giuseppe Pipoli (Università dell'Aquila)

Abstract: Denoting with H^n the n-dimensional hyperbolic space, we show that constant mean curvature hypersurfaces in H^n x R with small boundary contained in a horizontal slice P are topological disks, provided they are contained in one of the two half-spaces determined by P. This is the analogous in H^n x R of a result in R^3 by A. Ros and H. Rosenberg. The proof is based on geometric and analytic methods : from one side the constant mean curvature equation is a quasilinear elliptic PDE on manifolds, to the other the specific geometry of the ambient space produces some peculiar phenomena.
This talk is based on a joint work with Barbara Nelli.

Nota: Questo seminario fa parte delle attività finanziate dal progetto MIUR Dipartimento d'eccellenza MATH@TOV CUP E83C18000100006
Note: This talk is part of the activity of the MIUR Department of Excellence Project MatMod@TOV (2023-2027)

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 di Roma "Tor Vergata"
Dipartimento di Matematica

Geometry Seminar

Date: 9th of May 2023
Schedule: 14:00 Rome Time
Where: Conference Room D'Antoni
Speaker: Nicolas Mascot (Trinity College Dublin)
Title: " Explicit computations with étale cohomology for curves and surfaces "

Abstract: We present an algorithm to compute explicit mod ell Galois representations which occur in the étale cohomology of curves and surfaces over Q. In particular, we obtain families of Galois representations parametrised by P^1_Q, and study their degeneration at bad places of P^1_Q.

Organizing Committee:
Codogni Giulio (Contact Mail)
Lido Guido Maria ( Contact Mail)
Onorati Claudio ( Contact Mail)
Further Info: Click here
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, 12 May 2023
Schedule: 14:30 Rome Time
Where: Conference Room 1201 “Roberta Dal Passo”
Speaker: Thomas WEBER (Università di Torino")
Title: " Noncommutative differential geometry with Hopf algebra symmetry"

Abstract: While in classical differential geometry one is given a unique differential structure, the de Rham calculus, such a canonical choice does not exist in noncommutative geometry. Moreover, while the de Rham differential is equivariant with respect to a given Lie group action, a noncommutative calculus might not be compatible with a corresponding Hopf algebra symmetry. We give a gentle introduction to noncommutative differential geometry, reviewing seminal work of Woronowicz (covariant calculi on Hopf algebras) and Hermisson (covariant calculi on quantum homogeneous spaces). The latter invokes the notion of faithful flatness and Takeuchi/Schneider equivalence. Afterwards we discuss an original construction of a canonical equivariant calculus for algebras in symmetric monoidal categories, with main examples including algebras with (co)triangular Hopf algebra symmetry, particularly Drinfel’d twisted (star product) algebras. The approach relies on and is essentially dual to the concept of ‘braided derivations’ and we show that the corresponding braided Gerstenhaber algebra of multi-vector fields combines with the noncommutative calculus, forming a braided Cartan calculus. If time permits we illustrate how to formulate Riemannian geometry in this framework, proving that for every equivariant braided metric there is a unique quantum Levi-Civita connection. The second half of the talk is based on the thesis of the speaker.

Organizing Committee:
Fabio Gavarini (mail to)
Martina Lanini (mail to)
Further Info: Click here
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, 12 May 2023
Schedule: 16:00 Rome Time
Where: Conference Room 1201 “Roberta Dal Passo”
Speaker: Emanuele LATINI (Università di Bologna)
Title: " Higher conformal Yang-Mills equation "

Abstract: On a pseudo Riemannian manifold consider a 2-form taking value in the adjoint representation of some (semisimple) Lie algebra. It is well known that the corresponding Yang-Mills functional is conformally invariant just in four dimensions. A natural question is whether there are natural replacements of the Yang-Mills functional that are conformally invariant. In the first part of the talk we will describe the main tools needed to answer this question, namely conformal defining densities for conformally compact manifolds and the (adjoint) tractor bundle; then we will show how to set up and to formally solve the Yang-Mills boundary problem on conformally compact manifolds. In general, smooth solutions are obstructed by an invariant of boundary connections. Specializing to Poincaré-Einstein manifolds with even boundary dimension parity, this obstruction is a conformal invariant of boundary Yang-Mills connections. This yields conformally invariant, higher order generalizations of the Yang-Mills equations and their corresponding energy functionals.

Organizing Committee:
Fabio Gavarini (mail to)
Martina Lanini (mail to)
Further Info: 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 Course
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 "R.Dal Passo"
2023.07.02 h: 11:00/13:00 Conference Room 1103 "R.Dal Passo"
2023.14.02 h: 11:00/13:00 Conference Room 1103 "R.Dal Passo"
2023.21.02 h: 11:00/13:00 Conference Room 1103 "R.Dal Passo"
2023.28.02 h: 11:00/13:00 Conference Room 1103 "R.Dal Passo"
2023.07.03 h: 11:00/13:00 Conference Room 1103 "R.Dal Passo"
2023.14.03 h: 11:00/13:00 Conference Room 1103 "R.Dal Passo"
2023.21.03 h: 11:00/13:00 Conference Room 1103 "R.Dal Passo"
2023.28.03 h: 11:00/13:00 Conference Room 1103 "R.Dal Passo"
2023.04.04 h: 11:00/13:00 Conference Room 1103 "R.Dal Passo"
2023.11.04 h: 11:00/13:00 Conference Room 1103 "R.Dal Passo"
2023.18.04 h: 11:00/13:00 Conference Room 1103 "R.Dal Passo"
2023.02.05 h: 11:00/13:00 Conference Room 1103 "R.Dal Passo"
2023.09.05 h: 11:00/13:00 Conference Room 1103 "R.Dal Passo"
2023.16.05 h: 11:00/13:00 Conference Room 1103 "R.Dal Passo"
2023.23.05 h: 11:00/13:00 Conference Room 1103 "R.Dal Passo"
2023.30.05 h: 11:00/13:00 Conference Room 1103 "R.Dal Passo"
2023.06.06 h: 11:00/13:00 Conference Room 1103 "R.Dal Passo"

Organizing Committee:
Codogni Giulio (Contact Mail)
Rapagnetta Antonio (Contact Mail)

Further Information: Click here for Geometry Webpage - and - Reading course on Birational Geometry Page




 

 

 

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