The characterization of compact support of fourier transform for scaling function of L2(Rs)
Jincang Han, Zhengxing Cheng · 2007
In this paper, under weaker condition, we give the sufficient and necessary condition that ϕ(x) is a scaling function of L2(Rs) we give results of the whole support of wavelets, these results are characterized by some equalities and inequalities. We have improved completely Long’s results.