On the Riesz Means of Expansions by Riesz Bases Formed by Eigenfunctions for the Ordinary Differential Operator of 4-th Order

Autor: M. B. Tahir, A. A. Aswhad
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Ibn Al-Haitham Journal for Pure and Applied Sciences, Vol 22, Iss 1 (2017)
Druh dokumentu: article
ISSN: 1609-4042
2521-3407
Popis: The aim of this paper is prove a theorem on the Riesz mean of expansions with respect to Riesz bases, which extends the previous results of Loi and Tahir on the Schrodinger operator to the operator of 4-th order.
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