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20052025
most citedMultiplicity-free representations of the principal A1-subgroup in a simple algebraic group

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math.GR2020

Overgroups of regular unipotent elements in simple algebraic groups

Gunter Malle, Donna M. Testerman

We investigate positive-dimensional closed reductive subgroups of almost simple algebraic groups containing a regular unipotent element. Our main result states that such subgroups…