International Journal of Mathematics and Mathematical Sciences (Jan 2004)
Infinite matrices, wavelet coefficients and frames
Abstract
We study the action of A on f∈L2(ℝ) and on its wavelet coefficients, where A=(almjk)lmjk is a double infinite matrix. We find the frame condition for A-transform of f∈L2(ℝ) whose wavelet series expansion is known.