Sharp Quantitative Stability of the Dirichlet spectrum near the ball

Dorin Bucur, Jimmy Lamboley, Mickaël Nahon +1

Let $\Omega \subset {\mathbb{R}}^n$ be an open set with the same volume as the unit ball $B$ and let ${\lambda }_k(\Omega )$ be the $k$-th eigenvalue of the Laplace operator of $\Omega$ with Dirichlet boundary…