Subject: triangulations with few vertices Date: Sat, 19 Jun 2004 12:27:38 +0100 (BST) From: Taras Panov To: Don Davis Regarding Jack Morava and Meshulam Roy's question on minimal triangulations, there are several papers and preprints of Frank Lutz and other people. They can be found at Frank's webpage: http://www.math.tu-berlin.de/~lutz/ There is a further link there to the "Atlas of triangulated manifolds with few vertices: The Manifold Page": http://www.math.tu-berlin.de/diskregeom/stellar/ The minimal number of vertices in a triangulation of RP^n is 6 for RP^2 (which is quite straightforward), 11 for RP^3, and 16 for RP^4 (I am not absolutely sure about the last one). Very best wishes, Taras Panov On Wed, 16 Jun 2004, Don Davis wrote: > Two postings: A question and a job posting...........DMD > __________________________________________________ > > Subject: Possible toplist question? > Date: Tue, 15 Jun 2004 10:40:28 -0400 (EDT) > From: Jack Morava > > From: Meshulam Roy > > ... do you perhaps know if topologists looked at the > following question: Let t(X) denote the minimal number > of vertices in a triangulation of a space X. > > Are there any general ways to estimate t(X) from below? > > A particularly interesting example might be > X = real projective n-space...