Subject: question Date: Fri, 06 Apr 2001 11:35:57 -0400 From: Howard Fegan To: dmd1@lehigh.edu Dear Don, Here is the question that we were discussing. I expect the answer is well known, just not to me. Let G be a semi-simple, simply connected, compact Lie group, and H a closed subgroup. What are the conditions on G and H so that G/H is a spin manifold? Thank you, Howard