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Pagina d'informazione di seminari ed eventi scientifici che avranno luogo settimanalmente per lo più in area romana.
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Settimana 04/05/2026 - 08/05/2026
Si comunica che è uscita la classifica del 2026 di research.com - Best Mathematics Universities in Italy 2026.
L'Università degli Studi di Roma "Tor Vergata" è seconda in Italia (dietro il Politecnico di Milano) per Matematica:
sito RANKING research.com
Seminari
Nel link sottostante trovate la Newsletter n.7 del progetto di Dipartimento MatMod@TOV, con l'invito di leggerla ed a darne massima diffusione:
Click below for PDF file Download:
NEWSLETTER n.7
Università degli Studi Roma Tor Vergata
Dipartimento di Matematica
Geometry Seminar with COMPLEX ANALYSIS seminar
Date: 05 May 2026
Schedule:
14:30 Rome Time
Where: Conference Room 1101 "C. D'Antoni"
Speaker: Pietro Piccione - University of Gothenburg
Title: "A non-Archimedean Calabi-Yau theorem "
Abstract:
In Kähler geometry, the Calabi-Yau theorem establishes the existence and uniqueness of Kähler metrics with prescribed volume form. In this talk, I will present a non-Archimedean version of this theorem for general Kähler manifolds, extending a theorem of Boucksom-Jonsson from the projective setting.
This is joint work with David Witt Nyström.
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)
Leandro Arosio (mail to contact)
Filippo Bracci (mail to contact)
Eleonora Di Nezza (mail to contact)
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
Mathematic Phisic Seminar
Date: 07 May 2026
Schedule: 16:00 - Rome Time
Where: Conference Room: 1201 Dedicated Prof.ssa "R. Dal Passo"
Title:"Exponential decay of correlations in hyperbolic supersymmetric nonlinear sigma models at high temperature"
Speaker: Luca Fresta - University Roma Tre
Abstract:
Supersymmetric nonlinear sigma models arise in the theory of
disordered systems and share key features with O(N)-type models. They also
exhibit surprising connections with probabilistic models such as the
vertex-reinforced jump process and the arboreal gas. In my talk, I will
consider a family of nonlinear sigma models on ℤ^d whose target space is
the hyperbolic supermanifold H^(2∣2n), n>1, and show the exponential decay
of the two-point function in the high-temperature regime T⩾C n, with C>0 a
universal constant, for any n>1 and d⩾1. The proof is based on the
reduction to a marginal fermionic theory and combines a high-temperature
cluster expansion with Grassmann norm bounds. Based on joint work with M.
Disertori and J. Duràn Fernàndez.
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
DocTorV SEMINAR
Date: 04 May 2026
Schedule: 14:30 - Rome Time
Where: Conference Room: 2001
Title:" "
Speaker: Federico Ferri - La Sapienza - University of Rome
Abstract:
In this seminar, I will present the problem of the propagation of singularities for differential equations and the corresponding problem of propagation of polarization for systems of differential equations. The problem has been solved for operators of principal type, but the theory is still incomplete for more general operators.
Finally, I would like to present an example of an extremely degenerate operator that does not fall within the classical theory, yet for which propagation phenomena still occur. This example arises from differential geometry and concerns certain systems of PDEs related to the curvature tensors of a Riemannian or Lorentzian metric.
N.B.: This talk is part of the activity of the MIUR Excellence Department Project Mat-Mod@TOV (CUP E83C23000330006).
Organizing Committee:
Arianna Vicari (mail to contact)
Andrea Pizzi (mail to contact)
Further Info and Program: For information contact to Arianna Vicari or Andrea Pizzi directly by E-mail.
Streaming Link (MS Teams): This seminar will be held in person
Università degli Studi Roma Tor Vergata
Dipartimento di Matematica
Operator Algebra Seminar
Date: 06 May 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: Pieter Naaijkens - Cardiff University
Abstract:
Topologically ordered phases of matter have interesting features, such as the existence of quasi-particles with braid statistics. These quasi-particles can be studied using an AQFT-inspired approach along the lines of the celebrated Doplicher-Haag-Roberts programme on superselection sectors. In this talk I will introduce an axiomatisation, called local topological order, of such quantum models. These axioms are defined in terms of nets of (ground state) projections satisfying certain conditions. They allow us to define a physical boundary algebra, and I will outline how in concrete models (such as Kitaev's toric code or Levin-Wen models) the bulk superselection sector (``DHR'') category can be recovered from the boundary algebra, giving a mathematical framework for topological holography. If time permits, I will explain how these axioms can be extended to included models with topological boundaries, and outline how this can be used to study, for example, Walker-Wang bulk-boundary systems.
Based on joint work with Corey Jones, Dave Penneys and Daniel Wallick ( arXiv:2307.12552 and arXiv:2506.19969 ) .
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
Università degli Studi Roma Tor Vergata
Dipartimento di Matematica
DIFFERENTIAL EQUATIONS SEMINAR
Date: 05 May 2026
Schedule: 14:30 - Rome Time
Where: Conference Room "R. Dal Passo "
Title: "T_he Weyl functional on connected sums of four-manifolds_ "
Speaker: Andrea Malchiodi - Scuola Normale Superiore di Pisa
Abstract:
The Weyl energy on four-manifolds is a geometric functional related to the Chern-Gauss-Bonnet formula. Similarly to Willmore's functional for surfaces embedded in the three-dimensional Euclidean space, it enjoys conformal invariance properties. We are interested in the interaction of the Weyl's functionals of two manifolds under the operation of connected sum, showing conditions that decrease the total energy. Such estimates might be useful in understanding compactness properties of minimizing or critical families of metrics.
This is joint work with F.Malizia
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
Another Seminar
Date: 06 May 2026
Schedule: 15:00 - Rome Time
Where: Conference Room "C. D'Antoni"
Title: "_Extreme Value theory for Stochastic differential equations via transfer operator "
Speaker: Paolo Giulietti - Università di Pisa
Schedule: 15:00 - Rome Time
Where: Conference Room "C. D'Antoni"
Title: "_Extreme Value theory for Stochastic differential equations via transfer operator "
Speaker: Paolo Giulietti - Università di Pisa
Abstract:
We investigate the distribution and clustering of extreme events of stochastic processes constructed by sampling the solution of a Stochastic Differential Equation on R^n. We do so by studying the action of an annealed transfer operators on suitable spaces of densities. The spectral properties of such operators are obtained by employing a mixture of techniques coming from SDE theory and a functional analytic approach to dynamical systems
(joint work with F. Flandoli, S. Galatolo and S. Vaienti).
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
Università degli Studi di Roma "Tor Vergata"
Dipartimento di Matematica
Algebra and Representation Theory Seminar (A.R.T.S.)
Date: Friday 08th May 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: Francesco Brenti - Università degli Studi di Roma "Tor Vergata"
Title: "Combinatorics of Cuntz algebras"
Abstract:
C*-algebras are fundamental objects in the mathematical descriptions of quantum mechanics and field theory. Cuntz algebras are a family of C*-algebras first defined in [Comm. Math. Phys. 57 (1977), 173-185]. In this talk I will survey the main combinatorial concepts and results arising from, and related to, these algebras. In particular, I will define certain permutations and review the state of the art on their characterization, enumeration, and construction. I will also explain how these results can be applied to the construction of subgroups of the automorphism, and outer automorphism, groups of these algebras.
I will conclude with some open problems and directions for further research.
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: Christophe HOHLWEG - Université du Quebec (Montreal)
Title: "Counting orbits"
Abstract:
An involution system (W,S), that is a group W generated by a set of involutions S, is naturally endowed with a weak order arising from orienting its Cayley graph. If (W,S) is a Coxeter system, Björner showed that the weak order is a complete meet-semilattice. This fact has many important consequences for Coxeter systems and their related structures.
In this talk, we discuss the following question: For which involution systems is the weak order a complete meet-semilattice?
The class of involution systems that satisfies this condition is larger than the class of Coxeter systems (it contains, for instance, cactus groups). In the case of an involution system with sign character, we provide a finite presentation by generators and relations and a classification in rank 3.
If time allows, we will also discuss open problems (e.g. in relation to automatic structures, geometric representations,…).
This is joint work with Fabricio Dos Santos and Aleksandr Trufanov.
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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