Isoperimetric cones and minimal solutions of partial overdetermined problems

• Autores: Filomena Pacella , Giulio Tralli
• Localización: Publicacions matematiques, ISSN 0214-1493, Vol. 65, Nº 1, 2021, págs. 61-81
• Idioma: inglés
• DOI: 10.5565/publicacionsmatematiques.v65i1.383647
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• Resumen

  • In this paper we consider a partial overdetermined mixed boundary value problem in domains inside a cone as in [18]. We show that, in cones having an isoperimetric property, the only domains which admit a solution and which minimize a torsional energy functional are spherical sectors centered at the vertex of the cone. We also show that cones close in the C1,1 -metric to an isoperimetric one are also isoperimetric, generalizing so a result of [1]. This is achieved by using a characterization of constant mean curvature polar graphs in cones which improves a result of [18].

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