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Currently a post-doc at Penn, was a grad-student at Rutgers. Here are some papers, some software, and a seminar.


Aug
29
revised Classifying spaces for enriched categories
deleted 2 characters in body
Aug
29
revised Classifying spaces for enriched categories
Leinster-fixing
Aug
29
comment Classifying spaces for enriched categories
@TomLeinster Hmm, you're right of course, I'm not sure what I mean any more either. I'm editing to clarify that this only works for $Cat$-enrichment.
Aug
28
awarded  at.algebraic-topology
Aug
27
comment Classifying spaces for enriched categories
@PeterSamuelson Thanks, now fixed :)
Aug
27
revised Classifying spaces for enriched categories
I can't count.
Aug
26
revised Classifying spaces for enriched categories
Fixed name of previous answerer from John Klein to C S-P.
Aug
26
comment Classifying space for homology endomorphisms supported on a graph?
@PVAL I'm hoping there will be an answer for each $\Gamma$ depending on (something like) its inclusion into $X \times X$ or possibly the maps induced on homology by $p$ and $q$. I'm quite interested in cases where uniqueness fails to hold...
Aug
26
revised Classifying space for homology endomorphisms supported on a graph?
Opposite question added
Aug
26
answered Classifying spaces for enriched categories
Aug
26
asked Classifying space for homology endomorphisms supported on a graph?
Aug
24
reviewed Approve Homotopy groups of $S^2$
Aug
17
awarded  Revival
Aug
17
revised Homotopy theory of acyclic categories
added 15 characters in body
Aug
17
answered Homotopy theory of acyclic categories
Aug
17
comment What's a good introduction to category theory for someone doing analysis?
Great book! I love the first footnote: "I clearly remember the following curious event: one well-known mathematician was giving a lecture being in low spirit, and for some strange reason he began to vent his anger on the axiom of choice. He splashed it with sarcasm, and after that he continued the lecture with proving a theorem where he used the fact that every ideal of a ring lies in a maximal ideal..."
Aug
10
comment History of categorical localization sans calculi of fractions
@QiaochuYuan I'm confused by your confusion -- the hom-sets and composition are very clearly described in the Appendix. Also, concepts that we describe using sentences with two "obvious"es now were obviously not obvious during their inception, otherwise they would have been discovered even earlier.
Aug
10
asked History of categorical localization sans calculi of fractions
Jul
31
answered Do cotangent bundles have “bounded geometry”?
Jul
27
comment Which journals publish applied mathematics with mostly pure mathematics content?
I had exactly the same question two years ago with this paper: aimsciences.org/journals/pdfs.jsp?paperID=10624&mode=full -- I've been extremely impressed with the relatively new Journal of Computational Dynamics. I experienced high quality of anonymous reviews, a relatively quick turnaround time, and a top-notch theory-savvy editorial board. That being said, I wish they'd go open access and lose the comic sans from their website.