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Usually, least action principles lead to hamiltonian, conservative and time reversible solutions in which no dissipation effect can be input. We show, through some examples related to ODEs or PDEs in ...

I will present joint results with H.-M. Nguyen concerning the study of the Jacobian determinant of maps from R^N into R^N (and also S^N into S^N). New estimates in the Wasserstein metric illuminate cl...

On a compact Riemannian manifold, we present stability results and their instability counterpart for sign-changing solutions of elliptic equations with critical nonlinearities. Such equations are said...

We will discuss the relationships of the Monge problem with a common differential model in granular matter theory. We will show that the Monge problem permits to prove existence and uniqueness/multipl...

In this talk, we introduce a fast multilevel method for solving minimization problems arising in various image restoration problems. Different from traditional multilevel methods which solve the the m...

If A and B are two matrices, what can be said about the distance between their eigenvalues in terms of the distance...

We discuss the numerical simulation of visco-elastodynamics based on finite element schemes for an inherent (singular hyperbolic) relaxation approximation. Those methods use piecewise polynomials of a...

Ci si soffermerà sull'omogeneizzazione nel caso stazionario ergodico descrivendo in particolare il caso unidimensionale e presentando qualche nuovo risultato nel caso di Hamiltoniane non convesse. Per...

Viene descritto uno schema di approssimazione di tipo semi-Lagrangiano per un sistema di equazioni composto da una equazione di Hamilton-Jacobi e una equazione di trasporto in forma conservativa. Ques...

Nel seminario verrà introdotto un modello per il movimento basato sullapolimerizzazione dell'actina tipico di alcuni batteri (quali Listeria monocytogenes, Rickettsia Rickettsii e Shigella Flexenari)....

The basic concepts and main features of Runge-Kutta and Rosenbrock exponential integrators will be reviewed, along with the main difficulties in computing the exponential matrix. The advantages of the...

In questo seminario presenterò un nuovo modello matematico microscopico (agent-based) in grado di riprodurre le strutture tipiche dei gruppi di animali in movimento, come le linee (aragoste, pinguini,...