Kolloquien und Oberseminare Übersicht Detail

Vortragende Person/Vortragende Personen:
Dr. Antonio De Rosa (New York University)

Diese Veranstaltung ist Teil der Veranstaltungsreihe „Oberseminar Partielle Differentialgleichungen“.

Zusammenfassung: We present our recent extension of Allard's celebrated rectifiability 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 first variation and positive d-dimensional density. We can apply this result to the minimization of anisotropic energies among families of d-rectifiable closed subsets of Rn. 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 rectifiability theorem to prove an anisotropic counterpart of Allard's compactness result for integral varifolds. The main result is a joint work with G. De Philippis and F. Ghiraldin.