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Soluzioni generalizzate ed ultrafunzioni

La teoria delle distribuzioni ci fornisce la nozione di soluzione generalizzata per problemi che non hanno soluzioni classiche. Comunque ci sono problemi che non hanno soluzione neppure nello spazio d...

Asymptotics of the nonlocal perimeter functional

I will deal with the asymptotic behavior of the s-Perimeter as s goes to 0, providing an explicit formulation in terms of the Lebesgue measure. Moreover, I will construct some examples of sets for whi...

A non-homogeneous elliptic problem dealing with the level set formulation of the inverse mean curvature flow

This lecture deals with the following problem, let us call it (P): \begin{equation} \left\{ \begin{array}{ll} \displaystyle - {\rm div} \left(\frac{Du}{\vert Du \vert} \right) + \vert Du \vert = f\,, ...

Some results on the long time behaviour of forced mean curvature flow.

I will discuss some results on the existence and stability of traveling wave solutions for the forced mean curvature flow. I will present also some related results on homogenization of mean curvature ...

Il problema isoperimetrico con densità: esistenza, regolarità, e limitatezza delle soluzioni

In questo seminario discuteremo il problema isoperimetrico su \mathbb{R}^N dotato di una densità; in altre parole, ci si preoccupa di minimizzare il perimetro a volume fissato, considerando però perim...

Omogeneizzazione di equazioni di Hamilton-Jacobi modellata su varieta' compatte arbitrarie

Mostriamo che i risultati sull'omogeneizzazione periodica di equazioni di Hamilton-Jacobi possono essere generalizzati sostituendo il toro con una qualsiasi varieta' compatta. Un tale approccio consen...

Generic Aubry sets on surfaces

Given a Tonelli Hamiltonian on a compact manifold, we can construct a compact invariant subset of the cotangent bundle enjoying variational properties which has the distinguished property of being a L...

The energy critical nonlinear wave equation in 3D

We will discuss recent works with Duyckaerts and Merle, dealing with global well posedness, blow-up and soliton resolution, for the energy critical wave equation....

Controllability and Lipschitz stability for degenerate parabolic operators of Grushin type

Baouendi-Grushin operators are important classes of degenerate elliptic operators which are strongly connected with other domains of mathematics such as subriemannian geometry. Parabolic problems asso...

Motion of elastic films by anisotropic surface diffusion with curvature regularization

We present short time existence, uniqueness, and regularity results for a surface diffusion evolution equation with curvature regularization in the context of epitaxially strained two-dimensional film...
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