scientific article; zbMATH DE number 1066334
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Publication:4357521
zbMath0892.35114MaRDI QIDQ4357521
Mark S. Ashbaugh, Rafael D. Benguria
Publication date: 10 May 1998
Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Laplace-Beltrami operatorLegendre functionsPayne-Pólya-Weinberger inequalityeigenvalues for ballsratio of the first two eigenvalues
Estimates of eigenvalues in context of PDEs (35P15) Spectral problems; spectral geometry; scattering theory on manifolds (58J50) Laplace operator, Helmholtz equation (reduced wave equation), Poisson equation (35J05)
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A sharp bound for the ratio of the first two Dirichlet eigenvalues of a domain in a hemisphere of 𝕊ⁿ
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