The argument principle in a spectral problem for systems of ordinary differential equations with singularities (Q1569315)
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scientific article; zbMATH DE number 1467854
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | The argument principle in a spectral problem for systems of ordinary differential equations with singularities |
scientific article; zbMATH DE number 1467854 |
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The argument principle in a spectral problem for systems of ordinary differential equations with singularities (English)
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2 July 2000
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The paper is devoted to a method that uses the argument principle to determine the number of eigenvalues of a spectral domain. The matrix of the system of this problem is assumed to depend analytically on the spectral parameter, and the range of the independent variable is possibly unbounded. The solution is required to be bounded at infinity.
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ordinary differential equation
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singularity
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eigenvalue
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argument principle
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