User JHM

18 votes

Quick definition of the tangent space

answered May 21, 2012 at 19:44

17 votes

Accepted

Cotangent bundle lift theorem

answered Dec 7, 2013 at 3:14

10 votes

Favorite popular math book

answered Jun 15, 2012 at 16:46

7 votes

Intuition about covariant derivative/connections on real and complex manifolds

answered Dec 18, 2013 at 4:54

7 votes

Ehresmann's fibration theorem in the C1 class

answered Oct 13, 2014 at 16:30

6 votes

Accepted

Belyi functions on non-compact surfaces; or: Building Riemann surfaces from equilateral triangles

answered Oct 31, 2013 at 11:51

5 votes

Is there a "right" proof of Riemann's Theta Relation?

answered May 1, 2013 at 18:25

5 votes

Next steps for a Morse theory enthusiast?

answered Jan 13, 2021 at 13:50

5 votes

Accepted

(Contradiction) All symplectic manifolds are holomorphic

answered Jan 25, 2021 at 14:00

4 votes

Distance to a closed set. Is this result known?

answered Feb 5, 2021 at 15:37

4 votes

Self-indexing Morse functions on non-compact manifolds

answered Dec 17, 2013 at 21:05

4 votes

Some special complex tori

answered Nov 16, 2013 at 3:56

3 votes

Is a non-compact Riemann surface an open subset of a compact one ?

answered Dec 3, 2013 at 18:04

3 votes

Accepted

Can we foliate the punctured space by tori?

answered Dec 6, 2013 at 22:06

3 votes

Applications of Hamiltonian formalism to classical mechanics

answered Jan 10, 2021 at 13:26

2 votes

space of reduced positive definite quadratic forms

answered Jul 16, 2014 at 2:04

2 votes

Fundamental groups of noncompact surfaces

answered Nov 7, 2018 at 0:01

2 votes

Relation between optimal transport cost and difference between topological invariants?

answered Jan 5, 2021 at 12:56

2 votes

Syzygies in Steinberg module of genus 2 mapping class group $\mathrm{MCG}(\Sigma_2)$

answered Dec 27, 2021 at 19:57

2 votes

Is there a homotopy/homology-theory for probability spaces?

answered Jan 14, 2022 at 14:59

2 votes

Is there an elementary proof of the polar factorization theorem for vector-valued function?

answered Jan 12, 2021 at 21:00

2 votes

Primitive orthogonal vectors/Unimodular matrices

answered Mar 2, 2013 at 5:46

2 votes

Schottky locus in genus 2

answered Jan 24, 2012 at 20:53

1 vote

Linear symmetric spaces are spaces with ''orthogonal complements''?

answered Jul 2, 2018 at 21:55

1 vote

Accepted

Lorentz quotient and orientation

answered Dec 31, 2013 at 14:24

1 vote

Fixed points of the Borel-Serre compactification

answered Jun 14, 2014 at 22:57

1 vote

Maps of algebraic curves (and their Jacobian)

answered Jun 14, 2012 at 19:34

1 vote

Normalizers in arithmetic groups

answered Feb 6, 2021 at 14:28

1 vote

Accepted

On covering a disk by non-overlapping subdisks

answered Feb 6, 2021 at 15:24

1 vote

On semi-discrete Wasserstein distance

answered Jan 5, 2021 at 20:19

Stack Exchange Network

35 Answers

Quick definition of the tangent space

Cotangent bundle lift theorem

Favorite popular math book

Intuition about covariant derivative/connections on real and complex manifolds

Ehresmann's fibration theorem in the C1 class

Belyi functions on non-compact surfaces; or: Building Riemann surfaces from equilateral triangles

Is there a "right" proof of Riemann's Theta Relation?

Next steps for a Morse theory enthusiast?

(Contradiction) All symplectic manifolds are holomorphic

Distance to a closed set. Is this result known?

Self-indexing Morse functions on non-compact manifolds

Some special complex tori

Is a non-compact Riemann surface an open subset of a compact one ?

Can we foliate the punctured space by tori?

Applications of Hamiltonian formalism to classical mechanics

space of reduced positive definite quadratic forms

Fundamental groups of noncompact surfaces

Relation between optimal transport cost and difference between topological invariants?

Syzygies in Steinberg module of genus 2 mapping class group $\mathrm{MCG}(\Sigma_2)$

Is there a homotopy/homology-theory for probability spaces?

Is there an elementary proof of the polar factorization theorem for vector-valued function?

Primitive orthogonal vectors/Unimodular matrices

Schottky locus in genus 2

Linear symmetric spaces are spaces with ''orthogonal complements''?

Lorentz quotient and orientation

Fixed points of the Borel-Serre compactification

Maps of algebraic curves (and their Jacobian)

Normalizers in arithmetic groups

On covering a disk by non-overlapping subdisks

On semi-discrete Wasserstein distance