Settimana 20/04/2026 - 24/04/2026

 

• Seminari

• Eventi

• Archivio Bollettini

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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

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Università degli Studi Roma Tor Vergata
Dipartimento di Matematica

 

Geometry Seminar

Date: 21 April 2026

Schedule:
14:30 Rome Time

Where: Conference Room 1101 "C. D'Antoni"

Speaker: Paola Frediani - Università di Pavia

Title: "A canonical projective structure on $mathbb{R}_g$ "

Abstract:

I will report on a joint work in progress with I. Biswas, E. Colombo and A. Ghigi in which we describe a canonical projective structure on every etale double cover of a curve $C$ of genus $g>6$. This projective structure is the restriction to the second infinitesimal neighborhood of the diagonal in $C imes C$ of the second fundamental form of the Prym map. It gives a section of the space of projective structures on $mathbb{R}_g$ and the $(0,1)$-component of the differential of this section is proven to be the pullback via the Prym map of the Kaehler form on $A_{g-1}$. This generalises a previous result obtained in collaboration with Biswas, Colombo, and Pirola in the case of $M_g$, showing the existence of a canonical projective structure on every curve of genus $g>3$, obtained by the second fundamental form of the Torelli map.

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)

Further Information: Click here for geometry webpage

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

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Università degli Studi Roma Tor Vergata
Dipartimento di Matematica

 

COMPLEX ANALYSIS SEMINAR

Date: 21 April 2026

Schedule: :00 - Rome Time

Where: Conference Room 2001

Title: " TBA "

Speaker: Simone Diverio Paris Sorbonne

Abstract: TBA

Organizing Committee:
Leandro Arosio (mail to contact)
Filippo Bracci (mail to contact)
Eleonora Di Nezza (mail to contact)

Further Info and Program: COMPLEX ANALYSIS SEMINAR page 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

 

Operator Algebra Seminar

Date: 22th April 2026

Schedule: 16:00 - Rome Time

Where: Conference Room 1201" R. Dal Passo "

Title:" Computing the category of superselection sectors of 2d lattice spin systems "

Speaker: Sergey Neshveyev - University of Oslo

Abstract:
Noncommutative function theory and dilation theory for semigroups of completely positive maps have led to an interesting class of algebras generalizing Cuntz and Cuntz-Pimsner algebras. While formally they are defined in a familiar way, using creation operators on Fock-type spaces, what makes them difficult to study is that it is not clear how to obtain mixed commutation relations between the creation and annihilation operators. As a result until recently these algebras have been understood only in a few special cases, and there are still no general methods of obtaining relations in them, analyzing the ideal structure or computing the K-theory. Some of these algebras admit large quantum symmetries, and quantum groups provide then tools to analyze them, which are not accessible from a more classical point of view. The talk will review some results, examples and open problems in this area.

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)
Sebastiano Carpi (mail to contact)

Further Info: Click here for Operator Algebras Seminar Page

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: 21 April 2026

Schedule: 14:30 - Rome Time

Where: Conference Room "R. Dal Passo "

Title: " Acceleration-based optimal transport"

Speaker: Filippo Quattrocchi - L.M.O.- Orsay

Abstract:
Finding smooth interpolations between probability measures is a problem of broad interest, with natural applications, e.g., in biology (trajectory inference) and computer graphics (image interpolation). In this talk, I will discuss a model in which such interpolations are obtained by minimizing an action functional of the acceleration. This minimization defines a discrepancy between measures that -- in analogy with Wasserstein distances from optimal transport theory -- admits an equivalent fluid-dynamical formulation and induces a Riemannian-like geometry on the space of measures. These results suggest possible applications to kinetic PDEs. This talk is based on arXiv:2502.15665, in collaboration with G. Brigati (ISTA) and J. Maas (ISTA), and ongoing work with G. Brigati (ISTA), G. Carlier (CEREMADE, Paris Dauphine-PSL), and J. Dolbeault (CEREMADE, Paris Dauphine University-PSL).
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

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Università degli Studi Roma Tor Vergata
Dipartimento di Matematica

 

DINAMICS SYSTEMS SEMINAR

Date: 22 April 2026

Schedule:
16:00 - 17:00 Rome Time

Where: Conference Room 1201 "R. Dal Passo"

Title: "On a certain characterization of Birkhoff billiards inside discs "

Speaker: Klaudiusz Czudek - Gdańsk University of Technology

Abstract:
I am going to discuss a certain characterization of Birkhoff Billiards inside discs which is related to the expansion of the formal Lazutkin conjugacy at the boundary. Based on the joint work with Jacopo De Simoi, Andrew Gad and Marco Poon.

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:
Leandro Arosio (mail to contact)
Filippo Bracci (mail to contact)
Olver J. Butterley (mail to contact)
Carlangelo Liverani (mail to contact)
Alfonso Sorrentino (mail to contact)

Further Info: Contact Alfonso Sorrentino (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

 

Ro.Ma.D.S. - Rome Centre on Mathematics for Modelling and Data ScienceS Seminar

Date: 20th April 2026

Schedule: 14:00 Rome Time

Where: ROOM 1201 "R. Dal Passo"

Title: "Fisher-Hartwig asymptotics for non-Hermitian random matrices"

Speaker: Eva Löcherbach - Université Paris 1 - Panthéon-Sorbonne

Abstract:

In this talk, I will present the two-dimensional analogue of the asymptotics for Toeplitz determinants with Fisher-Hartwig singularities, for general real symbols. A key focus of the talk will be the surgery method we developed to handle these singularities and establish global asymptotics. I will also discuss applications of this result, including the convergence of the characteristic polynomial of random normal matrices to Gaussian Multiplicative Chaos measure. Based on joint work with Paul Bourgade, Guillaume Dubach, and Lisa Hartung.

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:
Domenico Marinucci contact Mail
Michele Salvi contact Mail

Stefano Vigogna contact Mail

Further Info and Program: Click here for RoMaDS event Page

Streaming Link (MS Teams): Link TEAMS Click here for Link

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Università degli Studi Roma Tor Vergata
Dipartimento di Matematica

 

Numerical Analisys Seminar

Date: 21th April 2026

Schedule: 11:30 - Rome Time

Where: Conference Room 1201 " R. Dal Passo"

Speaker: Deepesh Toshniwal - Delft University of Technology

Title: "Boundary integral methods: numerical tools and applications "

Abstract: Finite Element Exterior Calculus (FEEC) is a powerful framework for developing stable discretizations of partial differential equations, providing a systematic approach to problems in computational electromagnetism and fluid mechanics. This talk explores recent developments in isogeometric versions of FEEC, with a special focus on structure-preserving discretizations for geometries with polar singularities. We will first discuss the construction of hierarchically-refined polar-spline spaces. We will then demonstrate how they form a discrete de Rham complex and provide a mathematically sound foundation for adaptive structure-preserving simulations on polar geometries.

This talk is part of the activity of the MIUR Excellence Department Projects MathMod@TOV CUP E83C23000330006.

Organizing Committee:
Carla Manni (Contact Mail)
Hendrik Speleers (Contact Mail)

Further Information: contact Speleers's Mail

Streaming Link (MS Teams): link Team This seminar will be held in mix mode: Teams and presence.

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Università degli Studi di Roma "Tor Vergata"
Dipartimento di Matematica

 

Algebra and Representation Theory Seminar (A.R.T.S.)

Date: Friday 24th April 2026

Schedule:
FIRST SEMINAR 14:30 - Rome Time
SECOND SEMINAR 16:00 - Rome Time

Where: Conference Room 1201 - R. Dal Passo

FIRST SEMINAR 14:30 Rome Time

Speaker: Thomas GOBET - University Clermont Auvergne

Title: "Bruhat orders and Hecke algebra modules attached to Coxeter subgroups "

Abstract:

Given a Coxeter group and a standard parabolic subgroup, Deodhar constructed a module over the Iwahori-Hecke algebra of the Coxeter group, giving rise to the so-called parabolic Kazhdan-Lusztig polynomials. There is no general theory of "Coxeter subgroups" of Coxeter groups, but several families of subgroups of Coxeter groups themselves admit a canonical structure of Coxeter group. We explain how to generalize Deodhar's construction to subgroups obtained as fixed points of an automorphism of order at most two of a standard parabolic subgroup of an arbitrary Coxeter group. This is joint work with P.-E. Chaput and L. Fresse, relying on properties of elements of minimal length in cosets modulo such subgroups obtained in a joint work with N. Chapelier. Note: this talk is part of the activity of the MIUR Excellence Department Project MatMod@TOV (CUP E83C23000330006).


SECOND SEMINAR 16:00 Rome Time

Speaker: Tobias ROSSMANN - Galway University

Title: "Counting orbits"

Abstract:

This talk revolves around generating functions enumerating linear orbits and conjugacy classes of unipotent groups. We will study these generating functions by means of their linearised siblings ("ask zeta functions") obtained by averaging over sizes of kernels in modules of matrices. The study of the latter functions involves a happy blend of algebra, combinatorics, and geometry.
Note: this talk is part of the activity of the MIUR Excellence Department Project MatMod@TOV (CUP E83C23000330006).

Organizing Committee: Fabio Gavarini (mail to)
Niels Kowalzig (mail to)
Martina Lanini (mail to)

Further Info: Click here for A.R.T.S. Webpage

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

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Eventi

 

 

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