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arXiv · 1904.11881

Vanishing-off subgroups and supercharacter theory products

Shawn T. Burkett·Mark L. Lewis
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Abstract

In this paper, we study the vanishing-off subgroups of supercharacters, and use these to determine several new characterizations of supercharacter theory products. In particular, we give a character theoretic characterization that allows us to conclude that one may determine if a supercharacter theory is a $Δ$-product or $\ast$-product from the values of its corresponding supercharacters.

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BibTeXRIS

Shawn T. Burkett, Mark L. Lewis. 2019-04-26. Vanishing-off subgroups and supercharacter theory products. https://arxiv.org/abs/1904.11881

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