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

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M. B. Tahir
A. A. Aswhad

Abstract

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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How to Cite
On the Riesz Means of Expansions by Riesz Bases Formed by Eigenfunctions for the Ordinary Differential Operator of 4-th Order. (2017). Ibn AL-Haitham Journal For Pure and Applied Sciences, 22(1). https://jih.uobaghdad.edu.iq/index.php/j/article/view/1277
Section
Mathematics

How to Cite

On the Riesz Means of Expansions by Riesz Bases Formed by Eigenfunctions for the Ordinary Differential Operator of 4-th Order. (2017). Ibn AL-Haitham Journal For Pure and Applied Sciences, 22(1). https://jih.uobaghdad.edu.iq/index.php/j/article/view/1277

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