O. A. Ziza, “Absolute summability of orthogonal series by <nobr>$(\varphi,\lambda)$</nobr> methods”, Izv. Vyssh. Uchebn. Zaved. Mat., 1991, Number 11,Pages <nobr>25

JOURNALS // Izvestiya Vysshikh Uchebnykh Zavedenii. Matematika // Archive

Izv. Vyssh. Uchebn. Zaved. Mat., 1991 Number 11, Pages 25–36 (Mi ivm5181)

Absolute summability of orthogonal series by $(\varphi,\lambda)$ methods

O. A. Ziza

Moscow

UDC: 517.518

Received: 15.09.1989

English version: Soviet Mathematics (Izvestiya VUZ. Matematika), 1991, 35:11, 25–35

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