User Peter May

177 votes

Accepted

Do we still need model categories?

answered Dec 13, 2011 at 2:05

87 votes

Accepted

Proof that a local fibration is a fibration, in May

answered Apr 1, 2017 at 17:31

81 votes

Accepted

Why should have Peter May worked with CGWH instead of CGH in "The Geometry of Iterated Loop Space"?

answered Apr 29, 2015 at 1:28

73 votes

Writing papers in pre-LaTeX era?

answered Jul 13, 2012 at 3:43

51 votes

Accepted

Kervaire invariant: Why dimension 126 especially difficult?

answered Jul 1, 2012 at 1:26

51 votes

Algebraic topology beyond the basics: any texts bridging the gap?

answered Dec 26, 2011 at 23:39

47 votes

Why higher category theory?

answered Nov 2, 2014 at 22:40

38 votes

The category of posets

answered Mar 16, 2012 at 16:05

37 votes

Mathematical "urban legends"

answered Feb 6, 2011 at 3:37

33 votes

Are spectra really the same as cohomology theories?

answered Dec 31, 2012 at 14:00

33 votes

Accepted

Did Peter May's "The homotopical foundations of algebraic topology" ever appear?

answered Aug 28, 2018 at 16:25

30 votes

Techniques for computing cup products in singular cohomology

answered May 14, 2011 at 19:28

30 votes

Natural transformations as categorical homotopies

answered Sep 3, 2011 at 16:55

28 votes

Heuristic behind $A_{\infty}$ - algebras

answered Mar 7, 2011 at 2:35

27 votes

Accepted

Finiteness of stable homotopy groups of spheres

answered Aug 26, 2012 at 22:53

26 votes

Intuition behind Thom class

answered Sep 22, 2012 at 13:18

26 votes

Why are monads useful?

answered Dec 27, 2011 at 2:44

25 votes

Definition of an E-infinity algebra

answered Feb 3, 2011 at 2:16

25 votes

origin of spectral sequences in algebraic topology

answered Feb 2, 2014 at 20:40

23 votes

Replacing triangulated categories with something better

answered Oct 20, 2019 at 15:52

23 votes

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

answered Aug 14, 2016 at 22:27

23 votes

Accepted

Modern source for spectra (including ring spectra)

answered Nov 25, 2011 at 23:31

23 votes

Accepted

A toolbox for algebraic topology

answered Jul 13, 2012 at 14:10

22 votes

Accepted

Computations in $\infty$-categories

answered Dec 28, 2011 at 17:39

22 votes

Why study the p-completions of a space?

answered Sep 19, 2015 at 3:03

22 votes

(co)homology of symmetric groups

answered Sep 11, 2014 at 17:22

21 votes

Why localize spaces with respect to homology?

answered Jul 8, 2014 at 2:29

21 votes

Accepted

In what sense are operads "better" than PROPs?

answered May 13, 2016 at 2:53

21 votes

Accepted

Serre fibration vs Hurewicz fibration

answered Jun 7, 2016 at 2:35

21 votes

Accepted

Does the category of topological symmetric spectra satisfy the monoid axiom ?

answered Dec 4, 2010 at 16:44

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268 Answers

Do we still need model categories?

Proof that a local fibration is a fibration, in May

Why should have Peter May worked with CGWH instead of CGH in "The Geometry of Iterated Loop Space"?

Writing papers in pre-LaTeX era?

Kervaire invariant: Why dimension 126 especially difficult?

Algebraic topology beyond the basics: any texts bridging the gap?

Why higher category theory?

The category of posets

Mathematical "urban legends"

Are spectra really the same as cohomology theories?

Did Peter May's "The homotopical foundations of algebraic topology" ever appear?

Techniques for computing cup products in singular cohomology

Natural transformations as categorical homotopies

Heuristic behind $A_{\infty}$ - algebras

Finiteness of stable homotopy groups of spheres

Intuition behind Thom class

Why are monads useful?

Definition of an E-infinity algebra

origin of spectral sequences in algebraic topology

Replacing triangulated categories with something better

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

Modern source for spectra (including ring spectra)

A toolbox for algebraic topology

Computations in $\infty$-categories

Why study the p-completions of a space?

(co)homology of symmetric groups

Why localize spaces with respect to homology?

In what sense are operads "better" than PROPs?

Serre fibration vs Hurewicz fibration

Does the category of topological symmetric spectra satisfy the monoid axiom ?