Wavelet sets in ℝn
- Cite this article as:
- Dai, X., Larson, D.R. & Speegle, D.M. The Journal of Fourier Analysis and Applications (1997) 3: 451. doi:10.1007/BF02649106
A congruency theorem is proven for an ordered pair of groups of homeomorphisms of a metric space satisfying an abstract dilation-translation relationship. A corollary is the existence of wavelet sets, and hence of single-function wavelets, for arbitrary expansive matrix dilations on L2(ℝn). Moreover, for any expansive matrix dilation, it is proven that there are sufficiently many wavelet sets to generate the Borel structure ofℝn.