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On the Definition of Multiresolution Analysis
Author(s): YANG Mei-xiang, DING Xuan-hao
Pages: 199-
202
Year: 2006
Issue:
3
Journal: GUANGXI SCIENCES
Keyword: 多分辨分析; Riesz基; 尺度函数; 小波;
Abstract: 总结多分辨分析的性质和多分辨分析的最本质特征,然后给出多分辨分析的最简洁的定义.即若{Vj}j∈z是L2(R)的一串闭子空间序列,满足条件:(1)单调性:…V-1(∪)V0(∪)V1(∪)V2...;(2)稠密性:(∪+∞j=-∞Vj)=L2(R);(3)伸缩性:若f(x)∈Vj(=)f(2x)∈Vj+1,j∈Z;(4)Riesz基的存在性:存在φ(x)∈V0使{φ(x-k)∶k∈Z}是V0的Riesz基.则称{Vj}j∈z为L2(R)的一个多分辨分析.
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