Seminario

Existence theory for perimeter functionals with measure data under isoperimetric conditions

Seminario periodico del Dipartimento di Matematica
27 febbraio 2024
Orario di inizio 
14:30
PovoZero - Via Sommarive 14, Povo (Trento)
Aula Seminari Dipartimento di Fisica
Destinatari: 
Comunità universitaria
Comunità studentesca UniTrento
Partecipazione: 
Ingresso libero
Referente: 
Gian Paolo Leonardi
Contatti: 
Università degli Studi Trento 38123 Povo (TN) - Staff Dipartimento di Matematica
+39 04 61/281508-1625-1701-3786-1980
Speaker: 
Thomas Schmidt (University of Hamburg)

Abstract

The talk is concerned with minimization problems for parametric perimeter functionals with measure data where - formally - the Euler-Lagrange equation is the geometric prescribed-mean-curvature equation with a signed measure on the right-hand side. This approach extends the classical variational theory based on Massari's functional and yields semicontinuity and existence results under the small-volume isoperimetric condition, a new and optimal assumption on the measures. The latter assumption, in fact, can be illustrated with several examples, admits a wide class of (n-1)-dimensional measures, and will be shown to be govern cancellation-compensation effects between perimeter and measure terms. Related developments for non-parametric functionals may also be discussed.

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