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Stime Lipschitz per problemi ellittici singolari al bordo

In questo seminario discutero' una classe di problemi ellittici in domini regolari con campi di trasporto singolari alla frontiera, es. dell'ordine dell'inverso della distanza al bordo. L'interesse pe...

Discontinuità libere, segmentazione ed inpainting

In questo seminario sono presentati alcuni funzionali del secondo ordine dipendenti da discontinuità libere nella funzione e nel gradiente, i cui minimizzanti forniscono una soluzione variazionale al ...

Su alcuni problemi di frontiera libera in magneto-idrodinamica

Verranno discussi alcuni problemi di frontiera libera della magneto-idrodinamica ideale, dove si trascurano gli effetti di dissipazione o la tensione superficiale, con l'obiettivo più generale di most...

Ill-posedness issues for first-order quasi-linear systems

Metivier proved in 2005 that hyperbolicity, meaning reality of the spectrum of the principal symbol, is a necessary condition for the well-posedness of the initial-value problem associated with first-...

Striped patterns and the eikonal equation

In this talk I discuss work with Marco Veneroni on curvature-penalizing energies that arise in models of pattern formation. These nonlocal energies contain competing terms, penalizing both rapid varia...

Differentiability of solutions to second-order elliptic equations via dynamical systems

For a second-order elliptic equation in divergence form we investigate conditions on the coefficients which imply that all solutions are Lipschitz continuous or differentiable at a given point. We ass...

Weakly Nonlinear Elliptic Systems with large Interactions

We discuss problems where there is a large interacting term.These occur in population models and nonlinear optics.we discuss some new Holder estimates and some new results on the behaviour of the corr...

Tectonic asymmetry of the Earth: any relation with tides?

Abstract: The Earth shows a systematic asimmetry of the first order tectonic features, both along subduction zones, orogens and oceanic rifts. This signature is consistent with the "westerly" dir...

Fast numerical solution of inverse problems in image processing

A general principle for dealing with the intrinsic numerical instability of most inverse problems is that of regularization. Among the regularization approaches the first one is Tikhonov regularizatio...

Diffusion geometry in shape analysis

Diffusion geometry, scale-space analysis, and study of heat propagation on manifolds have recently become a popular tool in data analysis in a variety of applications. In this talk, we will explore th...

Shape from Shading - Stereo Fotometrico: un nuovo approccio analitico e numerico

Il seminario è incentrato su una nuova modellizzazione del problema di SfS attraverso l'utilizzo di tecniche Stereo Fotometriche SfS-SF (ossia tramite l'utilizzo di due o più immagini digitali). Il si...

Dynamic Sensor Tasking for Space Situational Awareness

This talk will present recent research on the use of information-theoretic approaches for managing the sensor network responsible for detecting, tracking, and cataloging space objects in support of sp...