617 reputation
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location Regina Canada
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visits member for 4 years, 9 months
seen Mar 19 '12 at 19:20

Jul
2
awarded  Curious
Apr
16
awarded  Popular Question
Sep
11
awarded  Nice Question
Jan
26
awarded  Yearling
Apr
11
awarded  Popular Question
Jan
27
awarded  Yearling
Jan
26
awarded  Popular Question
Jun
26
comment Software for rational homotopy theory
Did you ask Yves Felix or Pascal? I have heard rumors of a probably like this written in C. Don
Jan
27
awarded  Yearling
Jun
15
comment Why didn't Vladimir Arnold get the Fields Medal in 1974?
It seems like many of the comments about being passed by are from Arnold himself.
May
7
comment What does the classifying space of a category classify?
I don't know the paper of Michael Weiss, however when I was writing the title of this question I had the feeling I have read this title before. So probably I at least read the title of that paper.
May
7
awarded  Nice Question
May
7
accepted What does the classifying space of a category classify?
May
7
comment What does the classifying space of a category classify?
I will look at this too.
May
7
comment What does the classifying space of a category classify?
Thank you. I will look at this.
May
7
asked What does the classifying space of a category classify?
Apr
22
comment When is every “solid” perfect complex faithful?
Doesn't (4) give an equivalent condition? ie $E$ is solid if and only if for every $f$, $f\otimes E=0$ implies that for some $n$, $f^{\otimes n}=0$. (The converse direction follows since $E\otimes k(p)\not=0$.)
Apr
19
answered What are the advantages of phrasing results in terms of exact sequences and commutative diagrams?
Apr
19
comment Hamiltonian circle actions and Lefschetz pencils
I guess there are some dimension restrictions that make my last suggestion not possible in general.
Apr
19
comment Hamiltonian circle actions and Lefschetz pencils
Is it possible to do (3) fiberwise over the image of the moment map? So basically constructing the Lefschetz pencil on each symplectic reduction in a way that only changes a "little bit" as you change the values of the moment map. (I wasn't sure if this comment is appropriate for MO or if I should have written you personally.)