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Approximating eigenvalues of discontinuous problems by sampling theorems

delete2008-01-01
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PRE
AI
M
M. H. Annaby *
R
R. M. Asharabi
DOI:10.1515/JNUM.2008.008delete
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摘要

摘要

En 中文
We use sampling techniques to compute eigenvalues of discontinuous second order boundary value problems. The eigenvalues are in general complex numbers and are not necessarily simple. Therefore error estimates for the truncation and amplitude errors on C of the sampling expansion and its termwise derivative are used. Moreover the problem we consider has two parts throughout [-1,1] and is not in general self adjoint. The boundary and compatibility conditions are assumed to be regular in the sense of Birkhoff to guarantee the existence of eigenvalues.
Keyword:
sampling theory in Paley-Wiener spaces
truncation and amplitude errors
discontinuous eigenvalue problems
Birkhoff regularity
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期刊

Journal of Numerical Mathematics 封面图
Journal of Numerical Mathematics
IF:
4
论文数:
308
被引数:
659

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E
egyptian knowledge bank (ekb)
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11.6W
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被引数: 84
Q
Qatar University
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8.9K
论文数: 9.0K
被引数: 16
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