Publication

Double centralizers of unipotent elements in simple algebraic groups of type G2, F4 and E6

Iulian Ion Simion
2013
Journal paper

Abstract

Let $u$ be a unipotent element of a simple algebraic group $G$ over a field $k$ of characteristic $p$ . We develop a method for computing the connected component of $Z(C_G(u))$ in the cases where $p$ is positive and both it and the rank of $G$ are small enough. The method is then carried out for $G$ of type $G_2$ , $F_4$ and $E_6$ in bad characteristic.

Official source

https://infoscience.epfl.ch/record/270828?ln=en

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