4.2 Article

Towards a reversed Faber-Krahn inequality for the truncated Laplacian

Journal

REVISTA MATEMATICA IBEROAMERICANA
Volume 36, Issue 3, Pages 723-740

Publisher

EUROPEAN MATHEMATICAL SOC
DOI: 10.4171/RMI/1146

Keywords

Degenerate elliptic operators; Dirichlet problems; principal eigenvalue; qualitative properties

Categories

Funding

  1. JSPS grants: KAKENHI [16H03948, 18H00833]
  2. Sapienza University
  3. GNAMPA-INDAM

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We consider the nonlinear eigenvalue problem, with Dirichlet boundary condition, for the very degenerate elliptic operator P-1(+) mapping a function u to the maximum eigenvalue of its Hessian matrix. The aim is to show that, at least for square type domains having fixed volume, the symmetry of the domain maximizes the principal eigenvalue, contrary to what happens for the Laplacian.

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