User Ben McKay

98 votes

What is convolution intuitively?

answered Sep 22, 2013 at 18:27

33 votes

Which great mathematicians had great political commitments?

answered Feb 17, 2021 at 19:47

30 votes

How to explain to an engineer what algebraic geometry is?

answered Oct 23, 2018 at 8:00

28 votes

What is the Levi-Civita connection trying to describe?

answered Nov 15, 2020 at 8:32

28 votes

On which regions can Green's theorem not be applied?

answered Apr 27, 2020 at 13:03

27 votes

Structures that turn out to exhibit a symmetry even though their definition doesn't

answered Dec 13, 2013 at 21:16

26 votes

Examples of common false beliefs in mathematics

answered May 11, 2011 at 13:00

25 votes

How does Mathematica do symbolic integration?

answered Mar 28, 2021 at 16:34

25 votes

Advice for researchers outside academia

answered Sep 29, 2020 at 18:00

20 votes

What is the defining property of reductive groups and why are they important?

answered Jan 17, 2019 at 10:24

20 votes

Accepted

Is the double-twisted Moebius strip isotopic to the trivial strip?

answered Dec 22, 2011 at 12:01

20 votes

Accepted

Why is there no symplectic version of spectral geometry?

answered Oct 19, 2017 at 16:14

18 votes

Accepted

Why only $\bar\partial$ but not $\partial$ in Dolbeault cohomology

answered Mar 29, 2018 at 15:26

18 votes

Maxwell's equations and differential forms

answered Aug 5, 2011 at 10:30

18 votes

Can the hyperbolic plane be immersed in three dimensional Euclidean space, if we are only looking for a weak solution?

answered Aug 20, 2013 at 17:01

18 votes

Accepted

Transitive embedding of the projective plane $\Bbb R P^2$ into the $4$-sphere

answered Apr 25, 2019 at 8:10

17 votes

Accepted

Are two metrics with the same Levi-Civita connection and the same volume form identical?

answered Jun 5, 2020 at 9:39

17 votes

Accepted

Classification of PDE

answered Jun 4, 2011 at 20:57

16 votes

Accepted

When is the first chern class of a Kaehler manifold positive/negative?

answered Jun 16, 2012 at 6:22

16 votes

Accepted

Does for every vector field there always exist a volume form for which the vector field is a homothety?

answered Jan 4, 2014 at 18:33

16 votes

Accepted

Given Gaussian curvature, can one construct a metric to fulfill the Gauss-Bonnet theorem?

answered Apr 4, 2014 at 13:15

16 votes

Accepted

Learning from unsuccessful attempts at the Poincaré conjecture

answered Jul 28, 2020 at 8:38

16 votes

Accepted

Geodesic preserving diffeomorphisms of constant curvature spaces

answered Aug 10, 2019 at 14:45

14 votes

Riemannian manifold as a metric space

answered Apr 19, 2020 at 4:45

14 votes

Books in advanced differential topology

answered Jun 1, 2021 at 15:01

14 votes

Accepted

Grassmannians on a vector space without metric

answered Sep 6, 2021 at 9:02

14 votes

Generalized Stokes' theorem

answered Jan 20, 2022 at 17:51

14 votes

Accepted

Isometry group of pseudo Riemannian manifold always a Lie group? (Myers-Steenrod)

answered Sep 6, 2013 at 11:03

13 votes

Submitting a companion paper with detailed proofs ?

answered Jan 16, 2014 at 19:37

13 votes

Accepted

Automorphisms of the Lie algebras $\mathfrak{sl}(2,R)$ and $\mathfrak{su}(2)$

answered Aug 24, 2017 at 12:56

Stack Exchange Network

516 Answers

What is convolution intuitively?

Which great mathematicians had great political commitments?

How to explain to an engineer what algebraic geometry is?

What is the Levi-Civita connection trying to describe?

On which regions can Green's theorem not be applied?

Structures that turn out to exhibit a symmetry even though their definition doesn't

Examples of common false beliefs in mathematics

How does Mathematica do symbolic integration?

Advice for researchers outside academia

What is the defining property of reductive groups and why are they important?

Is the double-twisted Moebius strip isotopic to the trivial strip?

Why is there no symplectic version of spectral geometry?

Why only $\bar\partial$ but not $\partial$ in Dolbeault cohomology

Maxwell's equations and differential forms

Can the hyperbolic plane be immersed in three dimensional Euclidean space, if we are only looking for a weak solution?

Transitive embedding of the projective plane $\Bbb R P^2$ into the $4$-sphere

Are two metrics with the same Levi-Civita connection and the same volume form identical?

Classification of PDE

When is the first chern class of a Kaehler manifold positive/negative?

Does for every vector field there always exist a volume form for which the vector field is a homothety?

Given Gaussian curvature, can one construct a metric to fulfill the Gauss-Bonnet theorem?

Learning from unsuccessful attempts at the Poincaré conjecture

Geodesic preserving diffeomorphisms of constant curvature spaces

Riemannian manifold as a metric space

Books in advanced differential topology

Grassmannians on a vector space without metric

Generalized Stokes' theorem

Isometry group of pseudo Riemannian manifold always a Lie group? (Myers-Steenrod)

Submitting a companion paper with detailed proofs ?

Automorphisms of the Lie algebras $\mathfrak{sl}(2,R)$ and $\mathfrak{su}(2)$