On approximation by tight wavelet frames on Vilenkin groups

Sergey Lukomskii, Iuliia Kruss, Alexandr Vodolazov

We consider the approximate properties of tight wavelet frames on Vilenkin group $G$. Let $\{G_n{\}}_{n\in \mathbb{Z}}$ be a main chain of subgroups, $X$ be a set of characters. We…