18,375 reputation
15886
bio website math.uchicago.edu/~may
location US
age 75
visits member for 4 years, 9 months
seen 2 hours ago
At the University of Chicago since 1967. Mainly known as an algebraic topologist.

2d
awarded  Good Answer
Aug
29
comment coproduct of the homology of iterated loop space on spheres
Commented on an identical question: you have to use the Adem relations.
Aug
28
answered The structure map of topological K-theory
Aug
11
comment History of categorical localization sans calculi of fractions
Vivit, the 1967 book of Gabriel-Zisman first gives the (set-theoretically dubious) zigzag construction and then gives the calculation of the localization via a calculus of fractions. So I agree with Karol.
Jun
28
comment “To operate the machine, it is not necessary to raise the bonnet.”
Tom, yes it is, and Vidit is referring to the Math Review of Frank's book.
Jun
28
comment “To operate the machine, it is not necessary to raise the bonnet.”
Vidit, that isn't a capital M meant is it? I'm sure I heard Frank say that quote in a talk, but I can't remember when or where. I also couldn't find it in his "Infinite loop spaces", but that sure is still enjoyable reading. Let me just recommend it.
Jun
15
awarded  Enlightened
Jun
15
awarded  Nice Answer
Jun
13
comment Tensor products over operads and bar constructions
Hey, slow down and look at the "bar construction'' in the cited reference: O is a monad acting on the left on an algebra (or more generally on a functor out of some domain category) and on the right on a functor (such as the n-fold suspension when O is the little n-cubes operad). I assume right module is meant in the sense of Fresse's book ``Modules over operads and functors'', but I don't see that as a functor with a right action by the monad O, so I don't see what bar construction you have in mind.
Jun
10
answered configuration space and iterated loop space
Jun
9
awarded  Nice Answer
Jun
3
comment What are algebras for the little n-balls/n-cubes/n-something operads exactly?
Intuition here is fine, but what, precisely, do you mean by an "E_n operad" in a general context. I know precisely what we mean in topology (or differential graded module) contexts.
May
29
answered Reference for an unbiased definition of a symmetric monoidal category
May
14
answered Is there a (satisfying) proof that cellular cohomology is isomorphic to simplicial cohomology that doesn't use relative cohomlogy?
May
13
awarded  Enlightened
May
13
awarded  Nice Answer
May
2
comment Identifying a Hopf algebra cohomology theory
It seems to me that the natural action, under which you would be looking at a cobar construction, would just come from the diagonal on the left most tensor factor H.
May
1
answered Identifying a Hopf algebra cohomology theory
May
1
awarded  Enlightened
Apr
30
awarded  Guru