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- W2896465652 abstract "We develop the rudiments of a finite-dimensional representation theory of groups over idempotent semifields by considering linear actions on tropical linear spaces. This can be considered a tropical representation theory, a characteristic one modular representation theory, or a matroidal representation theory---and we draw from all three perspectives. After some general properties and constructions, including a weak tropical analogue of Maschke's theorem, we turn to a study of the regular representation of a finite group and its tropicalization. For abelian groups we find an interesting interplay between elementary number theory and matroid theory---even cyclic groups are surprisingly rich---and we conclude with some possible first steps toward a tropical character theory." @default.
- W2896465652 created "2018-10-26" @default.
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- W2896465652 date "2018-10-19" @default.
- W2896465652 modified "2023-09-27" @default.
- W2896465652 title "Matroidal representations of groups" @default.
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