Size properties of wavelet packets generated using finite filters
Nielsen, Morten
Rev. Mat. Iberoamericana, Tome 18 (2002) no. 1, p. 249-265 / Harvested from Project Euclid
We show that asymptotic estimates for the growth in $L^p(\mathbb{r})$-norm of a certain subsequence of the basic wavelet packets associated with a finite filter can be obtained in terms of the spectral radius of a subdivision operator associated with the filter. We obtain lower bounds for this growth for $p\gg 2$ using finite dimensional methods. We apply the method to get estimates for the wavelet packets associated with the Daubechies, least asymmetric Daubechies, and Coiflet filters. A consequence of the estimates is that such basis wavelet packets cannot constitute a Schauder basis for $L^p(\mathbb{R})$ for $p\gg 2$. Finally, we show that the same type of results are true for the associated periodic wavelet packets in $L^p[0,1)$.
Publié le : 2002-03-14
Classification:  Wavelet analysis,  wavelet packets,  subdivision operators,  Schauder basis,  $L^p$-convergence,  42
@article{1051544237,
     author = {Nielsen, Morten},
     title = {Size properties of wavelet packets generated using finite filters},
     journal = {Rev. Mat. Iberoamericana},
     volume = {18},
     number = {1},
     year = {2002},
     pages = { 249-265},
     language = {en},
     url = {http://dml.mathdoc.fr/item/1051544237}
}
Nielsen, Morten. Size properties of wavelet packets generated using finite filters. Rev. Mat. Iberoamericana, Tome 18 (2002) no. 1, pp.  249-265. http://gdmltest.u-ga.fr/item/1051544237/