In this talk I present some differential equation perturbed by the fast motion of a particle in a cylinder corresponding to the Z-periodic Lorentz gas, a model introduced by H.A Lorentz in 1905. I will discuss there are one of the natural ways to…
Eventi
Calcolo della traccia di funzioni di matrici mediante stimatori stocastici e probing – Michele Rinelli (Scuola Normale Superiore)
Le funzioni di matrici [1] sono un potente strumento dell’algebra lineare numerica per l’analisi di vari problemi provenienti dalle applicazioni.…
Shadow-complexity and trisection genus – Hironobu Naoe (Chuo University)
A shadow of a closed 4-manifold is a 2-complex suitably embedded in the 4-manifold, which can be treated as a…
On the non-linear Schrödinger equation with a point interaction – Raffaele Scandone (Università degli Studi di Napoli Federico II)
In this talk I will discuss the Schrödinger operators with point interaction, which model the dynamics of a quantum particle…
Mathematical flexibility: A promising focus for research and practice – Jon Star (Harvard University)
Mathematical flexibility is increasingly recognized as an important construct of interest for both researchers and practitioners in mathematics education. Flexibility…
Incompressible Turbulence with critical regularity – Luigi De Rosa (University of Basel)
Since the celebrated Kolmogorov Theory of Turbulence from 1941 it has been clear that, at first approximation, a good understanding of incompressible turbulence is subject to the study of weak solutions to the Euler equations having critical…
A McKay correspondence in Donaldson-Thomas theory of Calabi-Yau 4-folds – Sergej Monavari (EPFL)
Donaldson-Thomas theory is classically defined for moduli spaces of sheaves over a Calabi-Yau threefold. Thanks to recent foundational work of Cao-Leung, Borisov-Joyce and Oh-Thomas, DT theory has been extended to Calabi-Yau 4-folds. We discuss how,…
Regularization by noise of an averaged version of the Navier-Stokes equations – Theresa Lange (Bielefeld University)
In [T16], the author constructs an averaged version of the deterministic three-dimensional Navier-Stokes equations (3D NSE) which experiences blow-up in finite time. In the last decades, various works have studied suitable perturbations of ill-posed…
The Parabolic Density Problem – Andrea Merlo (Universidad del Pais Vasco)
In this talk, I will present the solution to the density problem in parabolic spaces in codimension 1 for the…
Costruzione di TQFT di dimensione 3 e 4 – François Costantino (Université de Toulouse III)
Comincerò questo seminario ricordando la definizione delle TQFT in dimensione n e alcuni fatti generali (e.g. la definizione degli invarianti…