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Found 4 Documents (Results 1–4)

Riesz inequality for systems of root vector functions of the Dirac operator. (English. Russian original) Zbl 1264.47049

Differ. Equ. 48, No. 3, 336-342 (2012); translation from Differ. Uravn. 48, No. 3, 334-340 (2012).
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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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On the Bessel property of systems of root functions of a differential operator. (English. Russian original) Zbl 1050.34125

Dokl. Math. 62, No. 2, 280-282 (2000); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 374, No. 6, 741-743 (2000).
MSC:  34L10 47E05 34L15
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