Reproducing subgroups of $Sp(2,\mathbb{R})$. Part I: algebraic classification

Abstract

We classify the connected Lie subgroups of the symplectic group $Sp(2,\mathbb{R})$ whose elements are matrices in block lower triangular form. The classification is up to conjugation within $Sp(2,\mathbb{R})$. Their study is motivated by the need of a unified approach to continuous 2D signal analyses, as those provided by wavelets and shearlets.

arXiv comment26 pages

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