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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