Higher Rank Wavelets
Canadian journal of mathematics, Tome 63 (2011) no. 3, pp. 689-720
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A theory of higher rank multiresolution analysis is given in the setting of abelian multiscalings. This theory enables the construction, from a higher rank MRA, of finite wavelet sets whose multidilations have translates forming an orthonormal basis in ${{L}^{2}}({{\mathbb{R}}^{d}})$ . While tensor products of uniscaled MRAs provide simple examples we construct many nonseparable higher rank wavelets. In particular we construct Latin square wavelets as rank 2 variants of Haar wavelets. Also we construct nonseparable scaling functions for rank 2 variants of Meyer wavelet scaling functions, and we construct the associated nonseparable wavelets with compactly supported Fourier transforms. On the other hand we show that compactly supported scaling functions for biscaled MRAs are necessarily separable.
Mots-clés :
42C40, 42A65, 42A16, 43A65, wavelet, multi-scaling, higher rank, multiresolution, Latin squares
Olphert, Sean; Power, Stephen C. Higher Rank Wavelets. Canadian journal of mathematics, Tome 63 (2011) no. 3, pp. 689-720. doi: 10.4153/CJM-2011-012-1
@article{10_4153_CJM_2011_012_1,
author = {Olphert, Sean and Power, Stephen C.},
title = {Higher {Rank} {Wavelets}},
journal = {Canadian journal of mathematics},
pages = {689--720},
year = {2011},
volume = {63},
number = {3},
doi = {10.4153/CJM-2011-012-1},
url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-2011-012-1/}
}
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