paper

On a Conjecture of Ashbaugh and Benguria about Lower Eigenvalues of the Neumann Laplacian

arXiv:1808.09520

Abstract

In this paper, we prove an isoperimetric inequality for lower order eigenvalues of the free membrane problem on bounded domains of a Euclidean space or a hyperbolic space which strengthens the well-known Szegö-Weinberger inequality and supports strongly an important conjecture of Ashbaugh-Benguria.

arXiv comment16 pages

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