We show that the third eigenvalue of the Neumann Laplacian in hy- perbolic space is maximal for the disjoint union of two geodesic balls, among domains of given volume. This extends a recent result by Bucur and Henrot in Euclidean space, while providing a new proof of a key step in their argument
© 2001-2024 Fundación Dialnet · Todos los derechos reservados