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

Authors
Chapman, SJ
Citation
Sj. Chapman, On the approximation of the eigenvalues of an annulus using complex rays, EUR J AP MA, 10, 1999, pp. 225-236
Citations number
3
Categorie Soggetti
Mathematics,"Engineering Mathematics
Journal title
EUROPEAN JOURNAL OF APPLIED MATHEMATICS
ISSN journal
09567925 → ACNP
Volume
10
Year of publication
1999
Part
3
Pages
225 - 236
Database
ISI
SICI code
0956-7925(199906)10:<225:OTAOTE>2.0.ZU;2-M
Abstract
The use of both higher-order amplitude corrections and complex rays to incr ease the accuracy of the approximation of the eigenvalues of Helmholtz equa tion on an annulus is demonstrated.