Applications of Affine Systems of Walsh Type to Generate Smooth Basis

Authors

DOI:

https://doi.org/10.24996/ijs.2021.62.12.25

Keywords:

Affine systems of Walsh type, affine Riesz basis, Rademacher system, Steklov concept

Abstract

The question on affine Riesz basis of Walsh affine systems is considered. An affine Riesz basis is constructed, generated by a continuous periodic function that belongs to the space on the real line, which has a derivative almost everywhere; in connection with the construction of this example, we note that the functions of the classical Walsh system suffer a discontinuity and their derivatives almost vanish everywhere. A method of regularization (improvement of differential properties) of the generating function of Walsh affine system is proposed, and a criterion for an affine Riesz basis for a regularized generating function that can be represented as a sum of a series in the Rademacher system is obtained.

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Published

2021-12-30

How to Cite

Hadi, K. ., & Nagy, S. . (2021). Applications of Affine Systems of Walsh Type to Generate Smooth Basis. Iraqi Journal of Science, 62(12), 4875–4884. https://doi.org/10.24996/ijs.2021.62.12.25

Issue

Section

Mathematics