# On the isoperimetric problem with double density

created by saracco on 09 Apr 2018
modified on 01 Oct 2018

[BibTeX]

Online first

Inserted: 9 apr 2018
Last Updated: 1 oct 2018

Journal: Nonlinear Analysis
Year: 2018
Doi: 10.1016/j.na.2018.04.009

ArXiv: 1804.02966 PDF
Notes:

A subscript $r$ is missing in the hypothesis of Theorem A and related Lemmas in the published version. This version contains the correct statements.

Abstract:

In this paper we consider the isoperimetric problem with double density in an Euclidean space, that is, we study the minimisation of the perimeter among subsets of $\mathbb{R}^n$ with fixed volume, where volume and perimeter are relative to two different densities. The case of a single density, or equivalently, when the two densities coincide, has been well studied in the last years; nonetheless, the problem with two different densities is an important generalisation, also in view of applications. We will prove the existence of isoperimetric sets in this context, extending the known results for the case of single density.