Top-level heading

Entropy-minimizing optimal transport

I will discuss a variant of the classical optimal transport dynamical problem, in which the entropy along the curve is minimized additionally to the kinetic energy.This results into a regularizat...

Derivation of Hartree theory for 2D attractive Bose gases

In this talk, I will present recent results on two-dimensional Bose gases with attractive interactions. More precisely, I will discuss the validity of Hartree theory, which states that the ground stat...

Fully nonlinear elliptic PDEs in thin domains

I will describe the more recent developments starting from the results  contained in two joint works with I. Birindelli and  H. Ishii. In [1] we extend to fully nonlinear operators of the we...

Topological classification of chiral and particle-hole symmetric insulators in low dimension

Motivated by the study of periodic Hamiltonians enjoying chiral or particle-hole symmetry, like the SSH model or the Kitaev chain, we present a topological study of families of symmetric functions fro...

Harmonic functions on groups, random walks, and the identification of the Poisson boundary

The Poisson boundary is a measure-theoretic object attached to a group equipped with a probability measure, and is closely related to the notion of harmonic function on the group. In many cases, the g...

Rigidity results for Serrin-type problems on annular domains

We characterize rotationally symmetric solutions to the Serrin problem on ring-shaped domains in $\mathbb R^n$ (n ≥ 3). Our proof relies on a comparison geometry argument. In particular, by taking adv...

Rigidity results for Serrin-type problems on annular domains

We characterize rotationally symmetric solutions to the Serrin problem on ring-shaped domains in ℝn (n ≥ 3). Our proof relies on a comparison geometry argument. In particular, by taking advantage of a...

Collegare mente e macchine: apprendimento, memoria e adattamento dal cervello all’IA

L’iniziativa è organizzata dal gruppo “BrainJuice”, una rete di studenti e ricercatori attivi nella comunicazione e divulgazione scientifica nei campi delle neuroscienze e dell’intelligenza artificial...

Controlling the zero-temperature Ising model using Markov decision theory

The behavior of the Ising model under external control mechanisms is of interest in a wide variety of applications, including biological systems, social dynamics, and information processing. In this t...

The Benamou-Brenier formulation of optimal transport on sub-Riemannian manifolds

The dynamical formulation of optimal transport between two probability measures $\mu_0,\mu_1$ on a (sub)Riemannian manifold $M$, aims at minimizing the square integral of a Borel family of vector fiel...

Sphere theorems for W^{2,n} hypersurfaces

A classical rigidity result of Alexandrov asserts that if $ 1 \leq k \leq n $ is an integer and $ \Sigma $ is a compact $ C^2 $-regular hypersurface of $ \mathbf{R}^{n+1} $ such that the $ k $-th mea...