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On the approximation of the eigenvalues of an annulus using complex rays

Published online by Cambridge University Press:  01 June 1999

S. J. CHAPMAN
S. J. CHAPMAN
Affiliation:
Mathematical Institute, 24–29 St Giles', Oxford OX1 3LB, UK
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Abstract

The use of both higher-order amplitude corrections and complex rays to increase the accuracy of the approximation of the eigenvalues of Helmholtz equation on an annulus is demonstrated.

Type
Research Article
Information
European Journal of Applied Mathematics , Volume 10 , Issue 3 , June 1999 , pp. 225 - 236
Copyright
1999 Cambridge University Press

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