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On the determination of finitely many parameters in some elliptic equations and systems from boundary measurements

In the talk I will describe some nonlinear severly ill-posed inverse boundary value problems involving elliptic equations and elliptic systems with applications to medical imaging, non destructive tes...

Unique tangent cones for 2-d almost minimal currents

In this talk I will discuss some new results on the infinitesimal behavior of 2 dimensional almost minimal surfaces (relevant examples are semi-calibrated currents and section of 3 dimensional minimiz...

Some mass transport problems as limits of p-Laplacian problems

Following the method introduced by Evans y Gangbo to solve the classical Monge-Kantorovich mass transport problem, in this lecture we present two mass transport problems obtained as limit when p\to \i...

Quasilinear elliptic problems with quadratic gradient term. Comparison principle and Gelfand problems

We review some recent results concerning with the existence of positive solutions of the following problem \begin{cases} \displaystyle -\Delta u +H(x,u,\nabla u)= \lambda f(u) \quad & \mbox{in}\,\...

Relative entropy methods and relaxation limits

We shall analyze relative entropy methods in connections with singular limits, both for the hyperbolic-to-hyperbolic and for the hyperbolic-to-parabolic relaxations. For the former case, we recall in ...

Criteria for the Poincare-Hardy inequalities

This is a survey of old and new necessary and sufficient conditions for validity of various integral inequalities containing arbitrary weights (measures and distributions). These results have direct a...

Some remarks on the fully parabolic Keller-Segel system in the plane

We will describe recent results on the doubly parabolic Keller-Segel system in the plane, when the initial data belong to critical scaling-invariant Lebesgue spaces. We analyze the global existence of...

Nonlinear problems with natural growth on the gradient and lack of an a priori estimates

The starting point is a paper by L. Boccardo, F. Murat, J.P. Puel, where it is considered the zero Dirichlet boundary value problems associated to nonlinear elliptic equaltions with quadratic dependen...

Quasistatic evolution models for thin plates in perfect plasticity

In this talk I shall discuss the rigorous derivation of a quasistatic evolution model for a thin plate in the framework of Prandtl-Reuss plasticity via Gamma-convergence techniques. The limiting model...

A variational approach to parabolic systems

We consider a purely variational approach to time dependent problems, yielding the existence of global parabolic minimizers. These evolutionary variational solutions are obtained as limits of maps dep...
Iscriviti a a.a. 2013-2014