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Found 13 Documents (Results 1–13)

On the basis property of the system of eigenfunctions of a spectral problem with spectral parameter in the boundary condition. (English. Russian original) Zbl 1189.34161

Differ. Equ. 43, No. 7, 905-915 (2007); translation from Differ. Uravn. 43, No. 7, 886-895 (2007).
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On the eigenvalue distribution and a Bessel property criterion for root functions of a differential operator. II. (English. Russian original) Zbl 1086.34068

Differ. Equ. 41, No. 5, 649-659 (2005); translation from Differ. Uravn. 41, No. 5, 623-631 (2005).
MSC:  34L10 40A30 34L20
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On the eigenvalue distribution and a Bessel property criterion for root functions of a differential operator. I. (English. Russian original) Zbl 1092.34041

Differ. Equ. 41, No. 4, 489-505 (2005); translation from Differ. Uravn. 41, No. 4, 464-478 (2005).
MSC:  34L10 40A30 34L20
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