On eigenfunction approximations for typical non–self–adjoint Schrödinger operators

DOI10.1098/rspa.2000.0562zbMath1024.34077arXivmath/9904093OpenAlexW2071257310MaRDI QIDQ2713404

E. Brian Davies, A. A. Aslanyan

Publication date: 27 November 2003

Published in: Proceedings of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/math/9904093

zbMATH Keywords

eigenfunctionspectral instabilitynonselfadjoint operatorcomplex resonanceJWKB method

Mathematics Subject Classification ID

Linear symmetric and selfadjoint operators (unbounded) (47B25) General theory of partial differential operators (47F05) Numerical approximation of eigenvalues and of other parts of the spectrum of ordinary differential operators (34L16) (Generalized) eigenfunction expansions of linear operators; rigged Hilbert spaces (47A70)

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