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JOURNALS // Itogi Nauki i Tekhniki. Sovremennaya Matematika i ee Prilozheniya. Tematicheskie Obzory // Archive

Itogi Nauki i Tekhniki. Sovrem. Mat. Pril. Temat. Obz., 2021 Volume 199, Pages 17–30 (Mi into886)

This article is cited in 2 papers

Frames in Walsh analysis, Hadamard matrices, and uniformly distributed sets

Yu. A. Farkov

Russian Academy of National Economy and Public Administration under the President of the Russian Federation, Moscow

Abstract: This paper continues the author's works on the relationship of Walsh analysis with recent results in the theory of orthogonal wavelet bases and the theory of tight frames. Parametric sets for orthogonal wavelets and compactly supported Parseval frames on Vilenkin groups are defined. Methods for constructing equiangular tight frames through Hadamard matrices are described. Also, we note that finite tight frames associated with Walsh functions can be useful for detecting hidden regular structures of uniformly distributed point sets.

Keywords: Hadamard matrix, Walsh function, Steiner system, wavelet, equiangular tight frame, uniformly distributed set, Vilenkin group.

UDC: 511.43, 517.518, 519.614

MSC: 11K38,15B34,42C15,42C40,43A15,51E10,65T60

DOI: 10.36535/0233-6723-2021-199-17-30



© Steklov Math. Inst. of RAS, 2025