home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: sci.math
- Path: sparky!uunet!europa.eng.gtefsd.com!emory!swrinde!zaphod.mps.ohio-state.edu!usc!cs.utexas.edu!qt.cs.utexas.edu!yale.edu!newsserver.jvnc.net!newsserver.technet.sg!nuscc!matmcinn
- From: matmcinn@nuscc.nus.sg (brett mcinnes)
- Subject: Compact quotients of symmetric spaces
- Message-ID: <1993Jan28.044501.24112@nuscc.nus.sg>
- Organization: National University of Singapore
- X-Newsreader: Tin 1.1 PL4
- Date: Thu, 28 Jan 1993 04:45:01 GMT
- Lines: 12
-
-
- A beautiful result due to Borel states that given any non-compact
- symmetric space, one can always find a discrete torsion-free subgroup of
- the identity component of the isometry group such that the quotient is
- compact. So for example if you take the Grassmannian GR5,2 =
- SO[2,3]/[SO(2)xSO(3)] then there exists a subgroup W of SO[2,3] such that
- W\GR5,2 is a compact Kahler-Einstein manifold with negative Ricci curvature.
- Question: How much is known about W in general [ie apart from hyperbolic
- spaces]? Suppose I want to find an antiholomorphic involution with no
- fixed points on W\GR5,2. How do I do it without knowing W? Any advice
- would be gratefully received.
-
-