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seen Nov 24 '12 at 14:37

Jun
25
awarded  Revival
Mar
11
awarded  Nice Question
Nov
24
comment I know that you know…
I was really trying to understand this answer, but now need to get some other work done outside MathOverflow.
Nov
23
comment I know that you know…
I deleted my previous comment so as not to confuse others. This logic puzzle is already confusing enough.
Nov
19
comment Can Assumptions about forcing produce Mice?
@Michael: it's not terribly clear from what you've written here what you are so upset about, but I'm sure everything will be fine if you just treat these mice fairly. I imagine these are grown-up mice you are talking about.
Nov
17
comment Poincare' 3-homology sphere
Wouldn't Whitney embedding theorem need 6 dimensions? Am I missing something? Wikipedia says you start with an immersion with transverse self-intersections, then you fix this. (I paraphrase.)
Nov
14
comment Poincare' 3-homology sphere
I wonder if someone would add here the reference for the Freedman result. Thanks!
Nov
10
comment What is the homotopy type of the space of the homeomorphisms of the n-ball such that the homeomorphism restricted to the boundary is isotopic to the identity?
I imagine in 6 you meant to say "the restriction to the boundary is isotopic to the identity". Interesting question!
Oct
25
comment Occurrences of (co)homology in other disciplines and/or nature
While this isn't so clear from the title of the question, the first sentence in the text of the question mentions wanting things outside of pure mathematics.
Oct
23
awarded  Popular Question
Oct
20
comment What if I want to look for a space with vanishing first homology but nonzero fundamental group?
Thank you for your help. I was being dense.
Oct
20
comment What if I want to look for a space with vanishing first homology but nonzero fundamental group?
I think the OP also wants the first homology group to be 0 -- going by the title of the question rather than the text.
Oct
19
comment ENR spaces which group of homeomorphisms is not locally contractable
I wonder if you would be willing to explain a little more how these wild arcs work -- I don't like opening links on the web, and I'm having a little trouble understanding your question without reading the Siebenmann manuscript. Thanks! Anyway, perhaps you'll get more answers to your question if you explain the question a little more.
Oct
10
awarded  Critic
Oct
10
comment Colloquial catchy statements encoding serious mathematics
Uh oh. Thanks for the warning.
Oct
4
comment Is Thompson's Group F amenable?
@Justin: good luck with your work on this difficult question!
Sep
4
comment Schubert varieties which admit small resolutions of singularities
That's interesting! In case you edit your answer again, I think MacPherson has a capital "P".
Aug
19
comment confusion about rational maps and Fatou components
I don't know the answer to your math question, but you don't sound at all like an idiot.
Aug
16
comment Classification of long exact sequences
Thank you. That is very helpful.
Aug
16
comment Classification of long exact sequences
What is the definition of "wild" in this context? Thanks in advance for your help in understanding the answer!