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Lunedì 18 giugno ore 14 seminario Prof. Antonio De Rosa "Anisotropic counterpart of Allard’s rectifiability theorem and applications"

Antonio De Rosa

Lunedì 18 giugno, ore 14:00 presso la Sala delle Riunioni (Plesso di Matematica) il professor Antonio De Rosa, del Courant Institute of Mathematical Sciences, New York University, terrà un semionario dal titolo: 
Anisotropic counterpart of Allard’s rectifiability theorem and applications 

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Organizzatori: Proff. Alessandra Lunardi e Giampiero Palatucci

Abstract

We present our recent extension of Allard's celebrated rectifiability theorem to the setting of  varifolds with locally bounded first variation with respect to an anisotropic integrand. In particular, we identify a necessary and sufficient condition on the integrand to obtain the rectifiability of every d-dimensional varifold with locally bounded first variation and positive d-dimensional density.
We can apply this result to the minimization of anisotropic energies among families of d-rectifiable closed subsets of $\mathbb{R}^n$. Corollaries of this compactness result are the solutions to three formulations of the Plateau problem: one introduced by Reifenberg, one proposed by Harrison and Pugh and another one studied by Guy David.
Moreover, we apply the rectifiability theorem to prove an anisotropic counterpart of Allard's compactness result for integral varifolds.

To conclude, we give some ideas of an ongoing project, which relies on the presented rectifiability theorem.

The main result is a joint work with G. De Philippis and F. Ghiraldin.
 

Pubblicato Giovedì, 7 Giugno, 2018 - 11:49 | ultima modifica Giovedì, 7 Giugno, 2018 - 11:56