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Mathematics
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Johnver's user avatar
Johnver
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  • Member for 9 years, 6 months
  • Last seen more than 7 years ago
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question
40
Is there a relationship between trigonometric functions and their "co" functions?
Apr 9, 2015
question
11
If $f :X \to Y$ is a diffeomorphism, then $df_x$ is an isomorphism of vector spaces.
Sep 8, 2016
question
10
What differences would it make to live in $T^3$, in $S^2 \times S^1$, in $\mathbb{R}P^3$, or in $S^3$?
May 19, 2016
question
8
Pacman on a Mobius Strip
Sep 26, 2016
question
6
Example of a space that is locally homeomorhpic to $\mathbb{R}^n$ but not Hausdorff
Sep 10, 2016
question
5
Orthogonal verus Perpendicular Terminology
Sep 2, 2016
question
5
An example of a compact topological manifold which has one cover?
Oct 24, 2015
question
4
Difference between direct sum and Cartesian product in terms of finite dimensional vector spaces.
Dec 13, 2015
question
4
Proving the convergence of $\sum\limits_{n=1}^{\infty}\frac{1}{1+z^n}$ for $|z| > 1$
Apr 29, 2015
question
3
Consider $f: S^1 \to$ Figure Eight. $f$ is an immersion, but how?
Sep 8, 2016