Orthogonal wavelets on direct products of cyclic groups

被引:30
作者
Farkov, Yu. A. [1 ]
机构
[1] Russian State Geol Prospecting Univ, Moscow, Russia
关键词
orthogonal wavelets; multiresolution analysis; scaling equation; locally compact; Abelian group; cyclic group; Walsh function; Haar measure; Borel set; blocked set of a mask;
D O I
10.1134/S0001434607110296
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We describe a method for constructing Compactly Supported orthogonal wavelets on a locally compact Abelian group G which is the weak direct product of a countable set of cyclic groups of pth order. For all integers p,n >= 2, we establish necessary and sufficient conditions under which the Solutions of the corresponding scaling equations with p(n) numerical coefficients generate multiresolution analyses in L-2 (G). It is noted that the coefficients of these scaling equations can be calculated from the given values of p(n) parameters using the discrete Vilenkin-Chrestenson transform. Besides, we obtain conditions under which a compactly Supported solution of the scaling equation in L-2(G) is stable and has a linearly independent system of "integer" shifts. We present several examples illustrating these results.
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页码:843 / 859
页数:17
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