An orthonormal wavelet basis in L 2 used for microlocal filters, which decompose signals into microlocal contents, is shown to be a "stepwise" unconditional basis in L p (1 < p < X ). Other related spaces are also treated. As part of the proof, an elementary proof of the L p version of the sampling theorem with unconditional convergence is given. Finally, an application is given to the expression of some distributions as sums of boundary values of holomorphic functions.
Wavelet Bases for Microlocal Filtering and the Sampling Theorem in Lp(Rn)∗
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