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Jon Beardsley
Jon Beardsley
00:30
Please ignore that question. =P
 
10 hours later…
Eric Peterson
Eric Peterson
10:04
i sure hope grant writing becomes less stressful as time goes on
 
8 hours later…
user101036
user101036
18:01
possibly stupid question, but if A is a profinite k-ring for k a field, then I know of two definitions (which are not the same over a field of char != 0 ):
1. It is an inverse limit of genuinely finite k-rings (i.e with finitely many elements)
2. It is an inverse limit of finite-dimensional k-rings.
the latter is found in say Demazure-Gabriel
I suppose that 2) is the one one should use in general? I mean, I suppose we would want the ring of formal power series to be profinite.
 
4 hours later…
anton
anton
22:14
this might interest you : webusers.imj-prg.fr/~patrick.polo/SGA3/Exp7B-23mai11.pdf
 
1 hour later…
Zhen Lin
Zhen Lin
23:18
Here's a hilarious thought: the passage from a category with weak equivalences to an (∞, 1)-category is essentially a vast generalisation of going from whole numbers to fractions.

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