Mathematics
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Johannes Huisman
  • Member for 6 years, 4 months
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All Questions Answers
Score Newest
answer
49
Prove that if V is finite dimensional then V is even dimensional?
Jun 17, 2016
answer
11
Does an abelian subgroup inject into the abelianisation of the whole group?
May 20, 2016
answer
10
A kind of converse to the Jordan curve theorem
Jan 26, 2016
answer
8
Tangent bundle of sphere as a complex manifold
May 14, 2016
answer
7
A ring isomorphic to a proper subring of itself
May 15, 2016
answer
7
If the cubic polynomial with rational coefficients $x^3+ax^2+bx+c$ has a double root, the root is rational.
May 10, 2016
answer
6
Can $\mathbb{Z}/6\mathbb{Z}$ act freely and properly discontinuously on $\Sigma_4$?
May 29, 2016
answer
6
Every compact semi-simple Lie group has finite center
May 31, 2016
answer
6
What is an "algèbre augmentée sur un corps?" (EGA I)
May 31, 2016
answer
6
Entire function $f$ and a function $g = \overline{f(\bar z)}$
Jun 17, 2016
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12
Quotient of solid torus by swapping coordinates on boundary
8
Polynomials with the same values set on the unit circle
8
Hodge map and the Cohomology Ring of a Riemannian Manifold
8
Regarding the surgery construction in "A procedure for killing homotopy groups of differentiable manifolds" by Milnor
7
Is $\mathbb{C}^n\setminus V(f)$ homotopy equivalent with a "large ball complement"?

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