From Weyl-Heisenberg Frames to Infinite Quadratic Forms

Details From Weyl-Heisenberg Frames to Infinite Quadratic Forms From Weyl-Heisenberg Frames to Infinite Quadratic Forms

2005-07-08

arxiv.org/abs/math/0507185v1

Mathematics

Functional Analysis

Scientific paper

Let $a$, $b$ be two fixed positive constants. A function $g\in L^2({\mathbb R})$ is called a \textit{mother Weyl-Heisenberg frame wavelet} for $(a,b)$ if $g$ generates a frame for $L^2({\mathbb R})$ under modulates by $b$ and translates by $a$, i.e., $\{e^{imbt}g(t-na\}_{m,n\in\mathbb{Z}}$ is a frame for $L^2(\mathbb{R})$. In this paper, we establish a connection between mother Weyl-Heisenberg frame wavelets of certain special forms and certain strongly positive definite quadratic forms of infinite dimension. Some examples of application in matrix algebra are provided.

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