aaron
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 Jan 20 awarded Yearling Jan 20 awarded Yearling Jan 20 awarded Yearling Apr 15 awarded Good Answer Mar 21 answered Continuous transformations of a triangle bound on $S_1$ Mar 10 answered Center-commutator duality Mar 8 comment Chromatic number and non-simple cycles @Nick: Not every graph with odd cycles is 3-chromatic. Every graph with odd cycles requires at least 3 colors, but 3 might not be enough. The chromatic number can be arbitrarily large. Mar 6 comment Graph Problems(Euler,Hamilton,Color) There is a well-known criterion for when graphs are Eulerian. It should be easy to apply here. For Hamiltonian and 4-coloring, try some examples and you'll figure it out. Mar 4 comment Expectancy value for the percentage of points lying in the Convex Hull (3D) I would expect the percentage to go to zero as $n$ grows. (It is sort of like the ratio of surface area to volume.) Mar 3 awarded Commentator Mar 3 comment Elementary proof that $\mathbb{R}^n$ is not homeomorphic to $\mathbb{R}^m$ He meant those spaces minus a point. Mar 3 awarded Supporter Mar 3 answered Multiples of a given irrational number can be arbitrarily close to a natural number Mar 3 answered Forcing bipartite graphs? Mar 3 answered On certain cases of Seifert Van Kampen Mar 2 answered A question regarding the notation/definition of homology group Feb 28 awarded Enlightened Feb 28 comment Is there a set-theoretic definition of Projective Space? No problem. The more people there are thinking about projective space, the better! Feb 28 comment Can we make $\tan(x)$ arbitrarily close to an integer when $x\in \mathbb{Z}$? Let me know when your son is ready to apply for college! :) Feb 27 awarded Mortarboard