Reputation
2,714
Next privilege 3,000 Rep.
Cast close & reopen votes
Badges
21 32
Newest
 Yearling
Impact
~236k people reached

Jun
9
comment Mathematical precise definition of a PDE being elliptic, parabolic or hyperbolic
@Willie Wong, You're awesome.
Jun
4
comment What is the connection between Grothendieck's Differential Operators and Hochschild Cohomology
Sorry, but I have a few more questions, first is $\mathcal{O}$ the same as $A$ here? Second, what do you mean de Rham of $A$? If you mean de Rham on the variety with coordinate ring $A$, then how is that different than the topological de Rham. Sorry if these questions are stupid.
Jun
4
comment What is the connection between Grothendieck's Differential Operators and Hochschild Cohomology
hehe, thanks @Pete L. Clark and @Mariano, the edit was what I intended. :)
Jun
4
asked What is the connection between Grothendieck's Differential Operators and Hochschild Cohomology
May
21
awarded  Good Answer
May
17
revised Lifting maps of quotient modules
deleted 4 characters in body
May
17
comment Lifting maps of quotient modules
Right again... sorry.
May
17
revised Lifting maps of quotient modules
added 10 characters in body
May
17
comment Lifting maps of quotient modules
Both maps are morphisms in $R$-mod.
May
17
comment Lifting maps of quotient modules
@Jack Thanks, you are right, $\bar{R}$ is not unital. I am not sure what structure you are asking about though.
May
17
asked Lifting maps of quotient modules
May
11
comment In (relatively) simple words: What is an inverse limit?
I too think of the Cauchy sequences analogy. This was suggested to me by D.N. Yetter. Good answer +1. Especially the last line, it is catchy and mnemonous.
May
10
comment Do localization and completion commute?
Didn't you just ask this on MO and get an answer.
May
8
comment references for learning about branch cuts/ branch points in complex analysis
Yayaya! Cool reference. +1!
May
8
answered references for learning about branch cuts/ branch points in complex analysis
May
5
comment String Theory: What to do?
Wow, biased much?
May
3
revised roots wiki excerpt
added 116 characters in body
May
3
revised quaternions wiki excerpt
added 121 characters in body
May
3
suggested approved edit on roots tag wiki excerpt
May
3
wiki created roots excerpt