Disjointness-preserving operators and isospectral Laplacians

DOI10.4171/JST/379zbMath1484.35292arXiv2002.09207OpenAlexW3204209515MaRDI QIDQ2078938

James Bernard Kennedy, Wolfgang Arendt

Publication date: 4 March 2022

Published in: Journal of Spectral Theory (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/2002.09207

zbMATH Keywords

intertwining operator Dirichlet boundary conditions Neumann boundary conditions isospectral domains disjointness-preserving operator

Mathematics Subject Classification ID

Boundary value problems for second-order elliptic equations (35J25) General topics in linear spectral theory for PDEs (35P05) Inverse problems for PDEs (35R30) General theory of partial differential operators (47F05) Laplace operator, Helmholtz equation (reduced wave equation), Poisson equation (35J05) Positive linear operators and order-bounded operators (47B65) Isospectrality (58J53)

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