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Non-Self-Adjoint Differential Operators

Non-Self-Adjoint Differential Operators Abstract A description is given of methods that have been used to analyze the spectrum of non-self-adjoint differential operators, emphasizing the differences from the self-adjoint theory. It transpires that even in cases in which the eigenfunctions can be determined explicitly, they often do not form a basis; this is closely related to a high degree of instability of the eigenvalues under small perturbations of the operator. 2000 Mathematics Subject Classification 34L05, 35P05, 47A10, 47A12. © London Mathematical Society http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Bulletin of the London Mathematical Society Oxford University Press

Non-Self-Adjoint Differential Operators

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References (73)

Publisher
Oxford University Press
Copyright
© London Mathematical Society
ISSN
0024-6093
eISSN
1469-2120
DOI
10.1112/S0024609302001248
Publisher site
See Article on Publisher Site

Abstract

Abstract A description is given of methods that have been used to analyze the spectrum of non-self-adjoint differential operators, emphasizing the differences from the self-adjoint theory. It transpires that even in cases in which the eigenfunctions can be determined explicitly, they often do not form a basis; this is closely related to a high degree of instability of the eigenvalues under small perturbations of the operator. 2000 Mathematics Subject Classification 34L05, 35P05, 47A10, 47A12. © London Mathematical Society

Journal

Bulletin of the London Mathematical SocietyOxford University Press

Published: Sep 1, 2002

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