A general result about the pseudo–spectrum of Schrödinger operators

DOI10.1098/rspa.2003.1194zbMath1085.47054OpenAlexW2094512116MaRDI QIDQ3043442

Karel Pravda-Starov

Publication date: 6 August 2004

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://doi.org/10.1098/rspa.2003.1194

zbMATH Keywords

non-selfadjoint differential operatorspseudo-spectrumWentzel--Kramers--Brillouin method

Mathematics Subject Classification ID

Particular ordinary differential operators (Dirac, one-dimensional Schrödinger, etc.) (34L40) General theory of ordinary differential operators (47E05) Singular perturbations, turning point theory, WKB methods for ordinary differential equations (34E20)

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