Sturm–Liouville Problems with Finite Spe
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Q. Kong; H. Wu; A. Zettl
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Article
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2001
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Elsevier Science
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English
⚖ 122 KB
For every positive integer n, we construct a class of regular self-adjoint and nonself-adjoint Sturm-Liouville problems with exactly n eigenvalues. These n eigenvalues can be located anywhere in the complex plane in the non-self-adjoint case and anywhere along the real line in the self-adjoint case.