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A random mathematician's user avatar
A random mathematician's user avatar
A random mathematician's user avatar
A random mathematician
  • Member for 10 years, 8 months
  • Last seen more than a week ago
21 votes
6 answers
3k views

Smooth functions on sphere

9 votes
2 answers
732 views

Number of critical points of smooth functions on $S^1$

8 votes
1 answer
2k views

Killing vector fields on sphere

8 votes
1 answer
495 views

Mountain Pass theorem for minimization problems with constraints

7 votes
1 answer
340 views

Level sets of weakly differentiable funtions

6 votes
1 answer
828 views

Geometry of curves on the sphere

6 votes
2 answers
710 views

Stability of minimal surfaces

5 votes
3 answers
452 views

Structure of sign changes under the heat flow

5 votes
1 answer
274 views

An elementary question about a sequence of numbers

5 votes
2 answers
288 views

$W^{k,1}$ regularity for elliptic equations

4 votes
0 answers
108 views

Continuity of solutions of Elliptic PDE with respect to parameters

4 votes
2 answers
443 views

Heat equation and evolution of number of critical points

3 votes
1 answer
203 views

Numerical solution of singular ODE

3 votes
2 answers
265 views

A Global Estimates for Linear Elliptic PDE

3 votes
1 answer
200 views

Eigenfunctions of elliptic equations

3 votes
0 answers
98 views

Comparison principle for Elliptic PDE with exponential nonlinearity

3 votes
1 answer
274 views

Symmetry of functions on $S^2$

3 votes
2 answers
1k views

Orthogonality to harmonic functions

2 votes
1 answer
361 views

(n-1)-dimensional normal currents and Smirnov's paper

2 votes
1 answer
258 views

An elementary functional inequality

1 vote
1 answer
83 views

Convergent algorithm for dividing a body into two regions of equal volume

1 vote
1 answer
191 views

Number of critical points

1 vote
1 answer
208 views

Strong maximum principle for the heat equation in non-cylindrical domains

1 vote
1 answer
157 views

Nodal sets under the heat flow

1 vote
1 answer
340 views

Functions orthogonal to harmonic functions

1 vote
1 answer
413 views

Global solutions of the wave equation with bounded initial condition

0 votes
1 answer
166 views

Unique continuation for the wave equation

0 votes
2 answers
219 views

A basic stability question

0 votes
1 answer
147 views

Solution of Poisson equation vanishing at the boundary of any order

0 votes
1 answer
616 views

Implicit function theorem for elliptic partial differential equations