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Semilinear automorphisms of classical groups and quivers

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 نشر من قبل Jinwei Yang
 تاريخ النشر 2019
  مجال البحث
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For a classical group $G$ over a field $F$ together with a finite-order automorphism $theta$ that acts compatibly on $F$, we describe the fixed point subgroup of $theta$ on $G$ and the eigenspaces of $theta$ on the Lie algebra $mathfrak{g}$ in terms of cyclic quivers with involution. More precise classification is given when $mathfrak{g}$ is a loop Lie algebra, i.e., when $F=mathbb{C}((t))$.



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