Continuous wavelet transform of Schwartz tempered distributions

被引:6
|
作者
Pandey, J. N. [1 ]
Upadhyay, S. K. [2 ]
机构
[1] Carleton Univ, Sch Math & Stat, Ottawa, ON, Canada
[2] Indian Inst Technol, BHU, Dept Math Sci, Varanasi, Uttar Pradesh, India
来源
关键词
function spaces and their duals; distributions; generalized functions; distribution spaces; wavelet transform of generalized functions;
D O I
10.1080/25742558.2019.1623647
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
The continuous wavelet transform of Schwartz tempered distributions is investigated and derive the corresponding wavelet inversion formula (valid modulo a constant-tempered distribution) interpreting convergence in S'(R). But uniqueness theorem for the present wavelet inversion formula is valid for the space S-F(R) obtained by filtering (deleting) (i) all non-zero constant distributions from the space S'(R), (ii) all non-zero constants that appear with a distribution as a union. As an example, in considering the distribution x(2)/1+x(2) = 1 - 1/1+x(2) we would omit 1 and retain only - 1/1+x(2) The wavelet kernel under consideration for determining the wavelet transform are those wavelets whose all the moments are non-zero. As an example, (1 + kx - 2x(2))e(-x2) is such a wavelet. k is an arbitrary constant. There exist many other classes of such wavelets. In our analysis, we do not use a wavelet kernel having any of its moments zero.
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页数:15
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