Lusternik-Schnirelmann categories of non-simply connected compact simple Lie groups

Details Lusternik-Schnirelmann categories of non-simply connected compact simple Lie groups Lusternik-Schnirelmann categories of non-simply connected compact simple Lie groups

2003-03-07

arxiv.org/abs/math/0303085v2

Mathematics

Algebraic Topology

13 pages

Scientific paper

Let $F \hookrightarrow X \to B$ be a fibre bundle with structure group $G$, where $B$ is $(d{-}1)$-connected and of finite dimension, $d \geq 1$. We prove that the strong L-S category of $X$ is less than or equal to $m + \frac{\dim B}{d}$, if $F$ has a cone decomposition of length $m$ under a compatibility condition with the action of $G$ on $F$. This gives a consistent prospect to determine the L-S category of non-simply connected Lie groups. For example, we obtain $\cat{PU(n)} \leq 3(n{-}1)$ for all $n \geq 1$, which might be best possible, since we have $\cat{\mathrm{PU}(p^r)}=3(p^r{-}1)$ for any prime $p$ and $r \geq 1$. Similarly, we obtain the L-S category of $\mathrm{SO}(n)$ for $n \leq 9$ and $\mathrm{PO}(8)$. We remark that all the above Lie groups satisfy the Ganea conjecture on L-S category.

Affiliated with

Also associated with

No associations

Rating

Lusternik-Schnirelmann categories of non-simply connected compact simple Lie groups does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Lusternik-Schnirelmann categories of non-simply connected compact simple Lie groups, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lusternik-Schnirelmann categories of non-simply connected compact simple Lie groups will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-440732