
I am teaching an introductory group theory course, and it has come to the inevitable proof that $A_n$ is simple for $n\geq 5$. Now, there seem to be a number of proofs that I can find – one the "standard" one with $3$-cycles, and the others using primitivity or conjugacy class size estimation. Do...

I am teaching an introductory group theory course, and it has come to the inevitable proof that $A_n$ is simple for $n\geq 5$. Now, there seem to be a number of proofs that I can find – one the "standard" one with $3$-cycles, and the others using primitivity or conjugacy class size estimation. Do...

In Theorem 7.4 of the paper "patching and the p-adic Langlands program for GL2(Qp)", https://arxiv.org/pdf/1609.06902.pdf, it is proved that in the minimally ramified case, the completed homology of given level is the completed tensor of the dual family of Banach representation (denoted as $\til...

Given the discussion, I tend to be gradually convinced that creating small-uncountable-cardinals is a good idea, and a good counterpart to the existing quite broad large-cardinals, which currently has almost 500 occurrences. I initially expressed that all this could be embedded into continuum-hyp...
About the (small-uncoutable-cardinals) tag
Mar 12 '19 at 11:56, 3 days total – 78 messages, 2 users, 0 stars
Bookmarked Mar 16 '19 at 11:52 by Martin Sleziak
Removal of (small-uncoutable-cardinals)
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Bookmarked Jan 2 at 5:12 by Martin Sleziak
The tag (cardinal-characteristics)
Jul 4 '19 at 5:43, 1 day 7 hours total – 21 messages, 1 user, 0 stars
Bookmarked Aug 2 '19 at 7:49 by Martin Sleziak
The tag (cardinal-characteristics) 2
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Bookmarked Aug 2 '19 at 11:52 by Martin Sleziak
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