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Sturm–Liouville problems with singular non-selfadjoint boundary conditions

✍ Scribed by Walter Eberhard; Gerhard Freiling; Anton Zettl


Publisher
John Wiley and Sons
Year
2005
Tongue
English
Weight
200 KB
Volume
278
Category
Article
ISSN
0025-584X

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✦ Synopsis


Abstract

Singular boundary conditions are formulated for non‐selfadjoint Sturm–Liouville problems which are limitcircle in a very general sense. The characteristic determinant is constructed and it is shown that it can be used to extend the Birkhoff theory for so called “Birkhoff regular boundary conditions” to the singular case. This is illustrated for a class of singular Birkhoff‐regular problems; in particular we prove for this class an asymptotic formula for the eigenvalues and an expansion theorem. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)


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