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This tag is used if a reference is needed in a paper or textbook on a specific result.

3 votes
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Explicit contraction for the universal simplicial bundle WG

Pages 75-81 of Appendix A of On the theory and applications of differential torsion products, Memoirs AMS 142 (1974), by V.K.A.M. Gugenheim and myself, gives a detailed treatment of the $W$-constructi …
David Roberts's user avatar
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6 votes
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Model categories and chain complexes

I'll take your question as license to advertise a relatively recent paper in a slightly more specialized but concretely calculational direction: http://nyjm.albany.edu/j/2014/20-53p.pdf. Its title …
Peter May's user avatar
  • 30.4k
6 votes

Reading list for Equivariant Cohomology

I would like to point out that the term "equivariant cohomology'' is ambiguous. To those unfamiliar with modern algebraic topology, it means Borel cohomology, the cohomology theory that is the subjec …
Peter May's user avatar
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6 votes

Lecture notes by Mahowald and Unell

Sanath, you will be happy to learn that I do have these notes. I'll give them to you to copy after you arrive in Chicago Monday.
Peter May's user avatar
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38 votes

The category of posets

Here is a fact that should be much more widely known than it is. The category of posets is isomorphic (not just equivalent) to the category of $T_0$ Alexandrof spaces. A topological space is said to …
David Roberts's user avatar
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15 votes
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Naturality of Moore-Postnikov systems

Working simplicially (in those days called "semi-simplicially") this is surely due to Moore, with details in unpublished 1956 lecture notes and in John C. Moore, Semi-simplicial complexes and Postniko …
Peter May's user avatar
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23 votes

Why do homotopy theorists care whether or not $BP$ is $E_\infty$?

I suppose I should try to answer since the question of whether or not $BP$ is an $E_{\infty}$ ring spectrum was Problem 1 of "Problems in infinite loop space theory'', http://www.math.uchicago.edu/~ma …
Peter May's user avatar
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4 votes
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The $\Gamma$-category associated to a permutative category

There are several different, provably equivalent, definitions. Construction 10 in http://www.math.uchicago.edu/~may/PAPERS/23.pdf is one example. It is used to prove the uniqueness of a machine takin …
Peter May's user avatar
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10 votes

Reference for ring structure on Thom spectra

The late Gaunce Lewis's 1978 PhD thesis ``The stable category and generalized Thom spectra'' proved (as a special case) that the Thom spectra of $F$ and its oriented version $SF$ (alias $GL_1(S)$ or $ …
Peter May's user avatar
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2 votes
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Where can I find basic "computations" of equivariant stable homotopy groups?

Since Denis gave the right reference, namely http://www.math.uchicago.edu/~may/BOOKS/equi.pdf, I did not follow up and answer this question. We can work with any compact Lie group and any complete un …
Peter May's user avatar
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4 votes

$RO(G)$-graded homotopy groups vs. Mackey functors

A. The brackets are the same computed in any model, as you say, and for most that entails fibrant approximation. For genuine $G$-spectra (complete universe), $G$ a compact Lie group, it goes back …
Peter May's user avatar
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6 votes

Computations in modular cohomology of finite groups

There is a comprehensive set of calculations of the homology of classical groups over finite fields in Z. Fiedorowicz and S. Priddy. Homology of classical groups over finite fields and their associate …
Peter May's user avatar
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10 votes

Reference for an unbiased definition of a symmetric monoidal category

This is not quite what you mean, but relevant. Remember that a strictly associative and unital symmetric monoidal category is called a permutative category. I observed ages ago (http://www.math.uchi …
Community's user avatar
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9 votes
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Classifying space for fibrations with Eilenberg-MacLane space as fibers

There is a very careful analysis of this question in Lemma 3.4.2, page 57, of More Concise Algebraic Topology, by Kate Ponto and myself. Assuming that $E$ and $B$ are connected, a fibration $E\longrig …
Peter May's user avatar
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9 votes
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Image of J splitting

my friend, I have an email! But I can offer the history. First, although the $E_{\infty}$ book was published in 1977, it is a shotgun marriage of a bunch of earlier preprints that were rejected for …
Peter May's user avatar
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