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中国博士后科学基金(2004036368)

作品数:2 被引量:1H指数:1
相关作者:袁著祉周性伟杨德运更多>>
相关机构:南开大学更多>>
发文基金:中国博士后科学基金国家自然科学基金更多>>
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Frame Wavelets with Compact Supports for L^2(R^n)被引量:1
2007年
The construction of frame wavelets with compact supports is a meaningful problem in wavelet analysis. In particular, it is a hard work to construct the frame wavelets with explicit analytic forms. For a given n × n real expansive matrix A, the frame-sets with respect to A are a family of sets in R^n. Based on the frame-sets, a class of high-dimensional frame wavelets with analytic forms are constructed, which can be non-bandlimited, or even compactly supported. As an application, the construction is illustrated by several examples, in which some new frame wavelets with compact supports are constructed. Moreover, since the main result of this paper is about general dilation matrices, in the examples we present a family of frame wavelets associated with some non-integer dilation matrices that is meaningful in computational geometry.
De Yun YANGXing Wei ZHOUZhu Zhi YUAN
关键词:FRAMEWAVELET
不规则小波框架的膨胀列
2006年
研究了L2(R)中小波框架{ψj,k}j,k={sjψ(sj·-kb)}j,k∈Z的膨胀列{sj}j的性质.如果{ψj,k}j,k是L2(R)的一个小波框架,那么膨胀列是无界的,在某些条件下{sj}j∈Z一定能够被重排为指标集Z上的一个非减数列,而且存在常数λ,μ∈(0,1)和p∈Z+,使得对j∈Z有λ
杨德运周性伟袁著祉
关键词:FOURIER变换小波
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