Sharp Quantitative Stability of the Dirichlet spectrum near the ball

Dorin Bucur, Jimmy Lamboley, Mickaël Nahon +1

Let $\hat{I}\text{c◯}\subset {\mathbb{R}}^n$ be an open set with the same volume as the unit ball $B$ and let $\hat{I}{»}_k(\hat{I}\text{c◯})$ be the $k$-th eigenvalue of the Laplace operator of $\hat{I}\text{c◯}$ with Dirichlet boun…