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seen Dec 22 at 15:17
I'm a mathematician currently working in informatics, and at the same time a grad student researching graph theory.

Dec
16
comment Question on a proof by Solonnikov,Ladyzhenskaya,Ural'tseva
The question on Mathematics SE is math.stackexchange.com/q/1057985 "Hölder regularity of the simple layer heat potential (question on the proof)" In the future, when you cross-post, please add links from each post to the other.
Nov
3
comment Awfully sophisticated proof for simple facts
See also mathoverflow.net/q/108330/5340
Oct
31
comment Not especially famous, long-open problems which anyone can understand
See also mathoverflow.net/q/184209/5340
Oct
31
comment Schoenberg's Rational Polygon Problem
@AaronMeyerowitz: yes, it is open, mathoverflow.net/a/100449/5340 gives a reference to a paper.
Sep
24
awarded  Autobiographer
Jul
17
comment Do good math jokes exist?
Downvoting because this joke is already in an earlier answer mathoverflow.net/a/3441/5340
Jul
17
comment Do good math jokes exist?
Oh come on! mathoverflow.net/a/2254/5340 already has the Cauchy joke.
Jul
17
comment Do good math jokes exist?
The earlier answer mathoverflow.net/a/1932/5340 already tells this... unless you know of a proof that works in ZF.
Jul
17
comment Do good math jokes exist?
This joke is also in the article linked by the very first answer mathoverflow.net/a/1085/5340
Jul
17
comment Do good math jokes exist?
Note that these jokes already appear in the very first answer by David Zureick-Brown: mathoverflow.net/a/1085/5340
Jun
18
comment Conjecture: for perfect graphs the fractional chromatic index rounded up equals the chromatic index
Related question on cstheory SE at cstheory.stackexchange.com/questions/24915 For which graph classes the fractional chromatic index rounded up equals the chromatic index?
May
22
comment What is a continuous path?
This question may be the same as the later question mathoverflow.net/questions/123760 Topological characterization of the closed interval [0, 1]
May
22
comment Topological characterization of the closed interval $[0,1]$
This question might be the same as mathoverflow.net/questions/80777/what-is-a-continuous-path What is a continuous path?
Apr
16
comment Lanczos algorithm with thick restart on a dynamic matrix
You may try to ask this on scicomp.stackexchange.com (but put links both ways to make it clear you're cross-posting).
Mar
26
comment Do graphs with large number of cycles always contain large necklace minor?
What if your graph is disconnected, say it has $ 2^n $ components, each a triangle?
Mar
14
comment Analogues of P vs. NP in the history of mathematics
This is a great example, especially because Bolyai has actually expected hyperbolic geometry to be consistent, and mapped out some theorems for it, though he couldn't prove that.
Mar
5
awarded  Pundit
Mar
5
comment Is $\lfloor \log(n!)\rfloor \alpha$ equidistributed on the unit circle?
Could you replace the vertical bars with $ \lfloor\dots\rfloor $ floor signs to make the notation more recognizable?
Feb
19
comment Simple example of why Differential Equations can be NP Hard
Give a specific decision problem, not just something as vague as "solving differential equations", and ask on cstheory.stackexchange.com please.
Feb
11
revised Polynomials that are sums of squares
tag polynomials