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PseudoNeo
  • Member for 13 years, 5 months
  • Last seen this week
7 votes
Accepted

Reference request in contact geometry.

7 votes
Accepted

Can $x^2+y^2,y^2+z^2,z^2+x^2$ and $x^2+y^2+z^2$ all be square numbers?

6 votes
Accepted

Can the long line be embedded in euclidean space?

6 votes
Accepted

Finding my mistake in a "proof" that there is no non-trivial knot

6 votes

connected sums of closed orientable manifold is orientable

6 votes

What is the sequence (1, 7, 2, 22, 3, 11, 4, ...)?

6 votes

Existence of an holomorphic function

6 votes
Accepted

Why this polynomial is irreducible?

5 votes
Accepted

Parallelisable three dimensional orientable manifolds and Stiefel's theorem

5 votes
Accepted

Is 2x (360°) rotated (orientable) Möbius band homeomorphic to $S^1\times[0,1]$?

5 votes
Accepted

Conformal map from punctured disc to disc

5 votes
Accepted

Universal covers and homotopy

5 votes
Accepted

Galois covers of Riemann surfaces

5 votes

Algebraic numbers expressible in terms of real-valued radicals

5 votes
Accepted

Does the sum of reciprocals of this subset of the primes converge?

5 votes
Accepted

Smooth diffeomorphism and $C^1$ diffeomorphism

4 votes

on the continuum hypothesis: only finitely many cardinals between $\aleph_0$ and $2^{\aleph_0}$

4 votes

Non-zero matrices are left and right zero divisors

4 votes
Accepted

Notation for representing ANY number?

4 votes
Accepted

What algebra is generated by $\mathrm{O}(2)$?

4 votes
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What does a finite extension look like?

4 votes
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Irreducible reps of $U(3,p)$

4 votes
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Question about extended complex plane

4 votes

$F$ closed and connected then...

4 votes
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restrictions on the fundamental group of a knot complement?

4 votes
Accepted

Proving Two Complexes are Not Quasi-Isomorphic

4 votes
Accepted

vector bundles on the affine line over a PID

4 votes
Accepted

Real vector bundles on $S^{7}$

4 votes

Binomial coefficients identity: $\sum i \binom{n-i}{k-1}=\binom{n+1}{k+1}$

3 votes
Accepted

For which $n, k$ is $S_{n,k}$ a basis? Fun algebra problem