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Timeline for $p$-groups with trivial $H^3$

Current License: CC BY-SA 4.0

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Sep 1, 2018 at 17:49 comment added Filippo Alberto Edoardo Oh yes, you're right: I read $=$ instead of $\leq$ in Remark 2.2(2): thanks!
Sep 1, 2018 at 16:53 comment added Jeremy Rickard @FilippoAlbertoEdoardo That remark only says it’s a subgroup of a group of order $p^2$, I think. The comments following Prop. 5.1 say it’s trivial (I think).
Sep 1, 2018 at 16:50 history edited Jeremy Rickard CC BY-SA 4.0
deleted 25 characters in body
Sep 1, 2018 at 14:51 comment added Filippo Alberto Edoardo If you take $G$ with a normal cyclic subgroup of order $p^2$ and quotient cyclic of order $p$, I wuold say that Lewis' paper shows that $H^3(G,\mathbb{Z})$ has order $p^2$: see Remark 2.2 (2) on page 504. Am I wrong?
Sep 1, 2018 at 14:30 vote accept Bemu
Sep 1, 2018 at 13:57 history edited Martin Sleziak CC BY-SA 4.0
added link to the paper
Sep 1, 2018 at 13:37 history answered Jeremy Rickard CC BY-SA 4.0