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alans
  • Member for 10 years, 11 months
  • Last seen this week
  • Serbia, Belgrade
15 votes
2 answers
7k views

Product of manifolds & orientability

8 votes
2 answers
2k views

Ergodicity of tent map

7 votes
1 answer
3k views

Solving distributional differential equation

7 votes
1 answer
416 views

Solvability by radicals of an equation of prime degree

6 votes
1 answer
2k views

Question about solvable groups

6 votes
2 answers
262 views

Dynamical systems proofs wanted

6 votes
4 answers
470 views

$\int_0^\infty \frac{x}{(e^{2\pi x}-1)(x^2+1)^2}dx$?

5 votes
1 answer
356 views

Equivalent condition for mixing

5 votes
0 answers
984 views

Twisted product

5 votes
2 answers
686 views

Is the real root of $x^4+3 x-3$ constructible?

5 votes
2 answers
296 views

Topology problem - compactness

5 votes
0 answers
226 views

General geodesics

5 votes
1 answer
185 views

Property of compact, convex sets in $\mathbb{R}^3$

4 votes
1 answer
83 views

Convergence of operator

4 votes
1 answer
349 views

How to determine a operator norm?

4 votes
2 answers
129 views

Question about finding minimum-Hilbert spaces

4 votes
2 answers
212 views

Construction of triangle

4 votes
0 answers
671 views

Integer homology of SO(n)

3 votes
1 answer
124 views

Ball-dimension of space

3 votes
2 answers
316 views

Inequality involving ArcTan

3 votes
1 answer
196 views

Convergence of an improper integral $I=\int_{0}^\infty x^a \ln{(1+\frac{1}{x^2})} dx$

3 votes
1 answer
1k views

Finding operator norm

3 votes
1 answer
6k views

How to show that space is complete?

3 votes
1 answer
194 views

Operator convergence

3 votes
1 answer
2k views

Cotangent bundle of a $n$-dimensional differentiable manifold is a $2n$-dimensional manifold

3 votes
2 answers
266 views

Integral $\int_0^\infty \frac{\sin{t}}{e^t-1}dt$?

3 votes
2 answers
132 views

$x_{n+1}=-1+\sqrt[n]{1+nx_n}$, $x_1>0$ limits

3 votes
1 answer
85 views

Continuity of parametric integral $I(\alpha)=\int_0^\infty \frac{\ln{(1-\alpha^2+\alpha^2x^2)}}{x^2-1}dx$

3 votes
1 answer
111 views

The proof of inequality

3 votes
1 answer
125 views

Convergence of integral $\int_{17}^\infty \frac{(\ln{\ln{x})}\sin{(e^{ax}})}{x+e}$

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