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On the canonical real structure on wonderful varieties

  • Dmitri Akhiezer EMAIL logo and Stéphanie Cupit-Foutou
Published/Copyright: January 22, 2013

Abstract.

We study equivariant real structures on spherical varieties. We call such a structure canonical if it is equivariant with respect to the involution defining the split real form of the acting reductive group G. We prove the existence and uniqueness of a canonical structure for homogeneous spherical varieties G/H with H self-normalizing and for their wonderful embeddings. For a strict wonderful variety we give an estimate of the number of real form orbits on the set of real points.

Funding source: DFG

Award Identifier / Grant number: SFB/TR 12

Received: 2012-3-4
Published Online: 2013-1-22
Published in Print: 2014-8-1

© 2014 by De Gruyter

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