User Otis Chodosh

46 votes

4 answers

10k views

What are "good" examples of spin manifolds?

asked Nov 4, 2011 at 19:15

22 votes

5 answers

16k views

Physical interpretation of Robin boundary conditions

asked Apr 27, 2012 at 1:46

19 votes

1 answer

510 views

Smooth curve in $\mathbb{R}^3$ not contained in real analytic surface?

asked Aug 18, 2022 at 23:12

17 votes

4 answers

2k views

Planar sets where any line through the center of mass divides the set into two regions of equal area.

asked Jul 20, 2010 at 20:28

16 votes

3 answers

1k views

Converse to Hopf degree theorem

asked May 5, 2022 at 16:09

13 votes

8 answers

3k views

Applications of the notion of of Gromov-Hausdorff distance

asked Feb 27, 2011 at 12:08

12 votes

2 answers

1k views

Converse to Bishop-Gromov Inequality

asked Jan 20, 2011 at 15:16

8 votes

1 answer

241 views

Poincare's argument for maximizing the Coulomb energy

asked Aug 1, 2017 at 1:32

8 votes

2 answers

1k views

What is the smallest $C^*$-algebra containing the "standard" pseudodifferential operators?

asked Aug 30, 2010 at 2:41

7 votes

1 answer

372 views

Theory of surfaces in $\mathbb{R}^3$ as level sets

asked Dec 13, 2018 at 16:16

6 votes

1 answer

390 views

Do manifolds with no Ricci lower bounds for any metric exist?

asked Apr 5, 2011 at 15:27

6 votes

1 answer

525 views

Wasserstein geometry of measures on manifolds related to the generalized Legendre transform and $d^2/2$-convexity

asked Jul 29, 2011 at 0:11

6 votes

2 answers

654 views

How small can the set of $p$ such that the $L^p$ norms are different for two fixed functions?

asked Nov 10, 2010 at 20:18

5 votes

3 answers

2k views

Characterizing the harmonic oscillator creation and annihilation operators in a rotationally invariant way

asked Aug 9, 2010 at 22:28

5 votes

2 answers

704 views

Ricci curvature under rough convergence

asked Mar 22, 2014 at 18:03

3 votes

0 answers

143 views

Cheeger--Gromoll's splitting theorem with weaker assumptions on the geodesic

asked Oct 20, 2016 at 14:44

2 votes

1 answer

217 views

Elementary proof of bounds on discrete derivative applied to $(1+n)^s$

asked Sep 12, 2010 at 17:26

1 vote

3 answers

688 views

How to show the cardinality of nonisometric compact metric spaces is the continuum

asked Dec 10, 2010 at 18:12

Stack Exchange Network

18 Questions

What are "good" examples of spin manifolds?

Physical interpretation of Robin boundary conditions

Smooth curve in $\mathbb{R}^3$ not contained in real analytic surface?

Planar sets where any line through the center of mass divides the set into two regions of equal area.

Converse to Hopf degree theorem

Applications of the notion of of Gromov-Hausdorff distance

Converse to Bishop-Gromov Inequality

Poincare's argument for maximizing the Coulomb energy

What is the smallest $C^*$-algebra containing the "standard" pseudodifferential operators?

Theory of surfaces in $\mathbb{R}^3$ as level sets

Do manifolds with no Ricci lower bounds for any metric exist?

Wasserstein geometry of measures on manifolds related to the generalized Legendre transform and $d^2/2$-convexity

How small can the set of $p$ such that the $L^p$ norms are different for two fixed functions?

Characterizing the harmonic oscillator creation and annihilation operators in a rotationally invariant way

Ricci curvature under rough convergence

Cheeger--Gromoll's splitting theorem with weaker assumptions on the geodesic

Elementary proof of bounds on discrete derivative applied to $(1+n)^s$

How to show the cardinality of nonisometric compact metric spaces is the continuum