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Extension of Walsh's rules to more general systems

✍ Scribed by Robert J. Buenker; Sigrid D. Peyerimhoff

Publisher
Springer
Year
1972
Tongue
English
Weight
852 KB
Volume
24
Category
Article
ISSN
1432-2234

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πŸ“œ SIMILAR VOLUMES

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We extend the classical Ambarzumyan's theorem for the Sturm-Liouville equation (which is concerned only with Neumann boundary conditions) to the general boundary conditions, by imposing an additional condition on the potential function. Our result supplements the PΓΆschel-Trubowitz inverse spectral t

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In this article we investigate the location of the null sets of generalized Ε½ . pseudo-derivatives of the product or quotient of abstract polynomials. Some special cases of this general problem were studied by Walsh as geometry of polynomials in the complex plane. One of our two results deduces an i