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A rigidity result for domains with a locally strictly convex point

  • Kyeonghee Jo
Published/Copyright: September 11, 2008
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Advances in Geometry
From the journal Volume 8 Issue 3

Abstract

In this article, we investigate projective domains with a strictly convex point in the boundary and their automorphisms. We prove that ellipsoids can be characterized as follows: A domain Ω is an ellipsoid if and only if ∂Ω is locally strongly convex at some boundary point where an Aut(Ω)-orbit accumulates. We also show that every quasi-homogeneous projective domain in an affine space which is locally strictly convex at a boundary point, is the universal covering of a closed projective manifold.

Received: 2006-10-20
Revised: 2007-11-27
Published Online: 2008-09-11
Published in Print: 2008-August

© de Gruyter 2008

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