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On hearing the shape of an arbitrary doubly-connected region in R2

Published online by Cambridge University Press:  17 February 2009

E. M. E. Zayed
Affiliation:
Mathematics Department, University of Emirates, Faculty of Science, P. O. Box 15551, Al-Ain, United Arab Emirates.
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Abstract

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The basic problem in this paper is that of determining the geometry of an arbitrary doubly-connected region in R2 together with an impedance condition on its inner boundary and another impedance condition on its outer boundary, from the complete knowledge of the eigenvalues for the two-dimensional Laplacian using the asymptotic expansion of the spectral function for small positive t.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1990

References

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