A Faber-Krahn inequality for nonhomogeneous wedge-like membranes
Abdelhalim Hasnaoui, Abdelhamid Zaghdani · AIMS Mathematics · 2025
In this paper, we adapt B. Schwarz and Banks-Krein techniques to obtain a new version of Faber-Krahn inequality for the first Dirichlet eigenvalue of the Laplacian in wedge like membranes with continuous mass density function.