Olivier Bégassat
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 Jul 30 revised Homeomorphisms of X form a topological group added 92 characters in body Jun 12 revised Does every bijection of $\mathbb{Z}^2$ extend to a homeomorphism of $\mathbb{R}^2$? added 368 characters in body Jun 11 revised Does every bijection of $\mathbb{Z}^2$ extend to a homeomorphism of $\mathbb{R}^2$? added 376 characters in body Jun 11 revised Does every bijection of $\mathbb{Z}^2$ extend to a homeomorphism of $\mathbb{R}^2$? added 376 characters in body Jun 7 revised $A^2 B=A$ iff $B^2 A=B$ added 10 characters in body May 31 revised Maximal order of elements of $\textrm{SL}(n, \mathbb{Z})$ added 312 characters in body May 31 revised Maximal order of elements of $\textrm{SL}(n, \mathbb{Z})$ added 93 characters in body May 27 revised Redundance of the Smoothness of the Inversion Map in the Definiton of a Lie Group. added 290 characters in body May 17 revised prove $p (\bigcup A_i) \leq \sum p (A_i)$ added 2 characters in body; edited title Apr 12 revised Determine the units of the ring $A= \mathbb Z[X]/(X^3)$ and the structure of the group $A^*$ added 898 characters in body Apr 2 revised Dual of a matrix lie algebra added 23 characters in body Mar 31 revised Let $|f(z)| \to \infty$ as $|z| \to \infty$, prove that $f(\mathbb{C})= \mathbb{C}$? deleted 39 characters in body Mar 27 revised Elementary proof that $\sum_{n \geq 1} \frac{(-1)^n}{\sqrt{n}}+i \frac{1}{n^2}$ is conditionally convergent. This question isn't about complex analysis. Mar 25 revised Every nilpotent left ideal is contained in a nilpotent 2 sided ideal. added 1 character in body Mar 23 revised Reducibility of $P(X^2)$ I added an invisible string of characters at the end of your answer, this allows me to change my initial mistaken downvote into an upvote. Mar 23 revised Where did mathematicians learn how to do truth tables? I added an invisible string of characters at the end so that I may undo an erroneous downvote. Mar 20 revised Why is $\ker\omega$ integrable iff $\omega\wedge d\omega=0$? added 4 characters in body Mar 19 revised Lie group. How is manifold defined? added 738 characters in body Mar 16 revised Equilateral triangle in a circle added 137 characters in body Mar 14 revised Understanding an example from Hatcher - cellular homology added 717 characters in body