Timeline for Isomorphism classes of split extensions [closed]

Current License: CC BY-SA 4.0

17 events

when toggle format	what		by	license	comment
Jan 31, 2020 at 14:45	history	closed	Max Horn user6976 Neil Hoffman Francois Ziegler YCor		Needs details or clarity
Jan 23, 2020 at 12:41	history	edited	Nourr Mga	CC BY-SA 4.0	added 32 characters in body
Jan 23, 2020 at 12:30	history	edited	Nourr Mga	CC BY-SA 4.0	added 10 characters in body
Jan 23, 2020 at 12:21	history	edited	Nourr Mga		edited tags
Jan 23, 2020 at 6:17	history	edited	Martin Sleziak	CC BY-SA 4.0	minor typos
Jan 23, 2020 at 0:19	history	edited	Nourr Mga	CC BY-SA 4.0	added 56 characters in body; edited tags
Jan 22, 2020 at 7:24	answer	added	abx		timeline score: 4
Jan 22, 2020 at 3:47	history	edited	YCor	CC BY-SA 4.0	fixed English, removed deprecated tag
Jan 22, 2020 at 0:50	history	edited	Nourr Mga	CC BY-SA 4.0	added 1 character in body
Jan 22, 2020 at 0:40	review	Close votes
Jan 31, 2020 at 14:50
Jan 22, 2020 at 0:34	history	edited	Nourr Mga	CC BY-SA 4.0	added 32 characters in body
Jan 22, 2020 at 0:32	comment	added	Nourr Mga		Thank you verret but I m focus here on the case $n\geq 2$ and the midle groups of the splits extensions must be non abelian.
Jan 22, 2020 at 0:24	comment	added	verret		The formula you have in mind doesn't even work for $n=1$. $P(1)=1$ so $P(1)-1=0$ but there is a split extension. Note, the subgroup might not be characteristic, for example when it's a direct product.
Jan 22, 2020 at 0:14	history	edited	Nourr Mga	CC BY-SA 4.0	deleted 1 character in body
Jan 21, 2020 at 23:56	history	edited	Nourr Mga	CC BY-SA 4.0	deleted 1 character in body
Jan 21, 2020 at 23:52	comment	added	David Handelman		What's the question?
Jan 21, 2020 at 23:49	history	asked	Nourr Mga	CC BY-SA 4.0

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