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Sascha
  • Member for 4 years, 6 months
  • Last seen this week
  • Nowosibirsk, Russia
30 votes
4 answers
5k views

How does Mathematica do symbolic integration?

16 votes
2 answers
939 views

Spectral symmetry of a certain structured matrix

15 votes
3 answers
1k views

Version of Banach-Steinhaus theorem

13 votes
2 answers
615 views

The geometry of $\mathbb{R}^n$

11 votes
2 answers
1k views

Operator that commutes with projections

8 votes
1 answer
683 views

Off-diagonalize a matrix

6 votes
1 answer
238 views

Continuity of eigenvectors

6 votes
1 answer
307 views

Complex-doubly periodic function in two variables?

6 votes
2 answers
641 views

Uniform continuity of heat semigroup

6 votes
1 answer
310 views

Maxima of Brownian motion

6 votes
1 answer
264 views

Phase transition in matrix

6 votes
1 answer
196 views

Criteria for operators to have infinitely many eigenvalues

6 votes
1 answer
389 views

Monotonicity of eigenvalues

6 votes
0 answers
97 views

Eigenvalues of splitting scheme

5 votes
2 answers
282 views

Backward heat equation and forward perturbed heat equation well posed?

5 votes
1 answer
474 views

Is the harmonic series worse than any summable series?

5 votes
1 answer
269 views

Triangle inequality for Ito integral?

5 votes
1 answer
103 views

Packing in uniform domains

5 votes
1 answer
205 views

First order PDE in complex variables?

5 votes
1 answer
219 views

Does such a function exist?

4 votes
2 answers
392 views

Periodic eigenfunctions for 2D Dirac operator

4 votes
1 answer
270 views

Variance of random variable decreasing in parameter

4 votes
2 answers
516 views

Ground state for non-linear Schrödinger

4 votes
1 answer
595 views

Simple proof of Prékopa's Theorem: log-concavity is preserved by marginalization

4 votes
1 answer
127 views

Power series in functions other than monomials

4 votes
1 answer
133 views

Mapping properties of backward and forward heat equation

4 votes
1 answer
301 views

Convergence of discrete Laplacian to continuous one

4 votes
1 answer
431 views

Derivative of trace

4 votes
1 answer
129 views

Spectrum Cauchy-Euler operator

3 votes
1 answer
150 views

Explicit eigenvalues of matrix?