The Orthonormal Dilation Property for Abstract Parseval Wavelet Frames
Canadian mathematical bulletin, Tome 56 (2013) no. 4, pp. 729-736
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In this work we introduce a class of discrete groups containing subgroups of abstract translations and dilations, respectively. A variety of wavelet systems can appear as $\pi \left( \Gamma\right)\psi $ , where $\pi $ is a unitary representation of a wavelet group and $\Gamma $ is the abstract pseudo-lattice $\Gamma $ . We prove a sufficent condition in order that a Parseval frame $\pi \left( \Gamma\right)\psi $ can be dilated to an orthonormal basis of the form $\tau \left( \Gamma\right)\Psi $ , where $\tau $ is a super-representation of $\pi $ . For a subclass of groups that includes the case where the translation subgroup is Heisenberg, we show that this condition always holds, and we cite familiar examples as applications.
Mots-clés :
43A65, 42C40, 42C15, frame, dilation, wavelet, Baumslag-Solitar group, shearlet
Currey, B.; Mayeli, A. The Orthonormal Dilation Property for Abstract Parseval Wavelet Frames. Canadian mathematical bulletin, Tome 56 (2013) no. 4, pp. 729-736. doi: 10.4153/CMB-2013-005-1
@article{10_4153_CMB_2013_005_1,
author = {Currey, B. and Mayeli, A.},
title = {The {Orthonormal} {Dilation} {Property} for {Abstract} {Parseval} {Wavelet} {Frames}},
journal = {Canadian mathematical bulletin},
pages = {729--736},
year = {2013},
volume = {56},
number = {4},
doi = {10.4153/CMB-2013-005-1},
url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-2013-005-1/}
}
TY - JOUR AU - Currey, B. AU - Mayeli, A. TI - The Orthonormal Dilation Property for Abstract Parseval Wavelet Frames JO - Canadian mathematical bulletin PY - 2013 SP - 729 EP - 736 VL - 56 IS - 4 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-2013-005-1/ DO - 10.4153/CMB-2013-005-1 ID - 10_4153_CMB_2013_005_1 ER -
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