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Daniel Rust
United Kingdom
dropbox.com/sh/4asdagfzuey2rsu/7cvCymVnUT
Age: 23
Current maths PhD in the UK.
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Top Questions
9
votes
Can the n-string sphere braid group embed in to the (n+1)-string sphere braid group?
group-theory
algebraic-topology
homotopy-theory
low-dimensional-topology
knot-theory
asked Apr 25 '12 at 15:22
math.stackexchange.com
8
votes
Geometric way to view the truncated braid groups?
group-theory
geometry
knot-theory
group-actions
combinatorial-geometry
asked Jun 3 at 15:48
math.stackexchange.com
6
votes
Examples of falsified (or currently open) longstanding conjectures leading to large bodies of incorrect results.
soft-question
math-history
big-list
conjectures
asked Mar 31 at 17:47
math.stackexchange.com
5
votes
Showing that the loopspace $\Omega S^{\infty}$ is homotopic to $S^{\infty}$.
algebraic-topology
homotopy-theory
fibration
loop-spaces
asked Apr 13 '12 at 20:37
math.stackexchange.com
5
votes
Equivalences and isomorphisms of short exact sequences
group-theory
category-theory
homological-algebra
abelian-groups
asked Apr 4 at 23:05
math.stackexchange.com
Top Answers
20
Are these 2 graphs isomorphic?
math.stackexchange.com
13
Why should Rubik's cube get attention from mathematicians?
math.stackexchange.com
12
What is $\pi_{31}(S^2)$?
math.stackexchange.com
9
$f$ continuously differentiable implies even or odd?
math.stackexchange.com
7
Does there exist a matrix $\mathbf{A}\in\mathbb{R}^{3\times3}$ such that $\mathbf{A}^{2}=-\mathbf{I}$?
math.stackexchange.com
6
Fundamental group of the Klein bottle, using action of a group?
math.stackexchange.com
6
Which group is isomorphic to $\left\langle\begin{bmatrix}0&1\\1&0\end{bmatrix},\begin{bmatrix}1&-1\\0 & -1 \end{bmatrix} \right\rangle$?
math.stackexchange.com
6
An intuitive idea about fundamental group of $\mathbb{RP}^2$
math.stackexchange.com
5
Topological Meaning of semi-direct product
math.stackexchange.com
5
Unit sphere in $\mathbb{R}^\infty$ is contractible?
math.stackexchange.com
5
Find the fundamental group of the torus with an open disc removed
math.stackexchange.com
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