User Andy Putman

125 votes

Examples of common false beliefs in mathematics

answered May 5, 2010 at 1:03

96 votes

Which mathematicians have influenced you the most?

answered Nov 14, 2009 at 18:07

93 votes

Accepted

What are fixed points of the Fourier Transform

answered Jan 16, 2010 at 23:58

68 votes

How do I fix someone's published error?

answered Jul 11, 2010 at 1:36

67 votes

The "derived drift" is pretty unsatisfying and dangerous to category theory (or at least, to me)

answered Dec 26, 2017 at 5:21

57 votes

Accepted

Is there a Whitney Embedding Theorem for non-smooth manifolds?

answered Aug 5, 2010 at 17:26

54 votes

Accepted

Is it the referee's responsibility to verify results from arXiv preprints used in the refereed paper?

answered Aug 6, 2020 at 23:28

47 votes

Accepted

Introductory text on geometric group theory?

answered Nov 2, 2009 at 23:34

44 votes

Best online mathematics videos?

answered Oct 22, 2009 at 2:18

43 votes

Which are the best mathematics journals, and what are the differences between them?

answered Oct 15, 2009 at 17:55

42 votes

Accepted

Sources for BibTeX entries

answered Apr 6, 2010 at 21:44

41 votes

Accepted

Who first dubbed them "expander graphs"?

answered May 30, 2014 at 1:39

38 votes

Which math paper maximizes the ratio (importance)/(length)?

answered Dec 1, 2009 at 2:16

38 votes

When is a Homology Class Represented by a Submanifold?

answered Apr 13, 2010 at 1:51

37 votes

Accepted

Liouville's theorem with your bare hands

answered Dec 20, 2012 at 20:00

36 votes

What are some correct results discovered with incorrect (or no) proofs?

answered Jun 11, 2010 at 4:40

35 votes

Accepted

Homeomorphisms and disjoint unions

answered Jun 13, 2013 at 6:09

34 votes

Beginner's questions on the post-doc application

answered Oct 30, 2013 at 21:31

33 votes

Which manifolds are homeomorphic to simplicial complexes?

answered Oct 28, 2010 at 22:03

33 votes

Accepted

What's a non-abelian totally ordered group?

answered Nov 3, 2009 at 22:52

32 votes

Accepted

Conformal maps in higher dimensions

answered Dec 29, 2009 at 21:19

30 votes

Great mathematical figures and/or diagrams?

answered Oct 28, 2009 at 0:54

30 votes

Accepted

Are the mapping class groups of manifolds finitely presentable?

answered Mar 29, 2014 at 1:44

29 votes

Why is the fundamental group of a compact Riemann surface not free ?

answered Apr 6, 2012 at 17:17

29 votes

Accepted

Computations in group cohomology

answered Mar 10, 2011 at 18:07

28 votes

Accepted

Are homeomorphic open subsets of $\mathbb{R}^n$ also diffeomorphic?

answered Nov 26, 2012 at 14:52

28 votes

Accepted

Realizing symmetric groups by diffeomorphisms

answered Oct 22, 2015 at 3:57

27 votes

Accepted

A function composed with itself produces the identity

answered Dec 8, 2013 at 2:43

27 votes

Pros and cons of specializing in an esoteric research area

answered Mar 8, 2020 at 1:43

26 votes

Homotopy type of Diff(ℝP³)

answered Sep 26, 2022 at 1:12

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350 Answers

Examples of common false beliefs in mathematics

Which mathematicians have influenced you the most?

What are fixed points of the Fourier Transform

How do I fix someone's published error?

The "derived drift" is pretty unsatisfying and dangerous to category theory (or at least, to me)

Is there a Whitney Embedding Theorem for non-smooth manifolds?

Is it the referee's responsibility to verify results from arXiv preprints used in the refereed paper?

Introductory text on geometric group theory?

Best online mathematics videos?

Which are the best mathematics journals, and what are the differences between them?

Sources for BibTeX entries

Who first dubbed them "expander graphs"?

Which math paper maximizes the ratio (importance)/(length)?

When is a Homology Class Represented by a Submanifold?

Liouville's theorem with your bare hands

What are some correct results discovered with incorrect (or no) proofs?

Homeomorphisms and disjoint unions

Beginner's questions on the post-doc application

Which manifolds are homeomorphic to simplicial complexes?

What's a non-abelian totally ordered group?

Conformal maps in higher dimensions

Great mathematical figures and/or diagrams?

Are the mapping class groups of manifolds finitely presentable?

Why is the fundamental group of a compact Riemann surface not free ?

Computations in group cohomology

Are homeomorphic open subsets of $\mathbb{R}^n$ also diffeomorphic?

Realizing symmetric groups by diffeomorphisms

A function composed with itself produces the identity

Pros and cons of specializing in an esoteric research area

Homotopy type of Diff(ℝP³)