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Sep 23, 2019 at 9:21 vote accept Winnie_XP
Sep 23, 2019 at 0:26 comment added Winnie_XP Thanks @Venkataramana, that's very helpful, I will look them up in details.
Sep 22, 2019 at 0:07 history edited Sean Lawton CC BY-SA 4.0
minor edit
Sep 21, 2019 at 22:59 answer added Sean Lawton timeline score: 6
Sep 20, 2019 at 7:25 review Close votes
Sep 20, 2019 at 18:03
Sep 20, 2019 at 6:51 comment added Venkataramana This is something very classical. You can replace the groups by their maximal compacts up to homotopy. Hence the space is homotopic to the quotient $SU(n)/SO(n)$. The Euler characteristic is zero unless $n=2$. For compact connected groups $H\subset G$, the Euler characteristic is zero unless both $G,H$ have the same rank, in which case, it is strictly positive. You may see A.Borel's early papers.
Sep 20, 2019 at 5:38 history asked Winnie_XP CC BY-SA 4.0