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On the finite representation of group equivariant operators via permutant measures (2008.06340v2)
Published 7 Aug 2020 in math.GR, cs.LG, and math.RT
Abstract: The study of $G$-equivariant operators is of great interest to explain and understand the architecture of neural networks. In this paper we show that each linear $G$-equivariant operator can be produced by a suitable permutant measure, provided that the group $G$ transitively acts on a finite signal domain $X$. This result makes available a new method to build linear $G$-equivariant operators in the finite setting.