Biorthogonal multiple wavelets generated by vector refinement equation

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Biorthogonal multiple wavelets are generated from refinable function vectors by using the multiresolution analysis. In this paper we provide a general method for the construction of compactly supported biorthogonal multiple wavelets by refinable function vectors which are the solutions of vector refinement equations of the formψ(x) =∑α∈Zs α(α)ψ(Mx-α), x ∈ Rs,sequence of r × r matrices called the refinement mask, and M is an s × s integer matrix such that limn→∞ M-n = 0. Our characterizations are in the general setting and the main results of this paper are the real extensions of some known results.
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