Chao Xu
Reputation
244
Next privilege 250 Rep.
 Oct 12 awarded Nice Question Jul 16 awarded Tumbleweed Jul 2 awarded Curious Nov 16 awarded Autobiographer Nov 9 accepted Space of simple polygons on $n$-vertices as a set of points in $\mathbb{R}^{2n}$ Nov 9 comment Space of simple polygons on $n$-vertices as a set of points in $\mathbb{R}^{2n}$ I'm more interested in simple polygons. I did some googling with this pointer, and it seems there is nothing on moduli space of simple polygons. Nov 9 asked Space of simple polygons on $n$-vertices as a set of points in $\mathbb{R}^{2n}$ Oct 7 awarded Caucus Oct 5 comment Primitive elements in a free group of rank three Is there a more elementary reference for the "monogon" and "bigon" condition for a single closed curve? The one in "Primer on mapping class groups" is a proof about pairs of simple closed curves. I'm working on an application that only consider this problem for the plane with holes, so it be nice to just learn the special case without going too deep into the theory. Jun 25 awarded Yearling Dec 29 awarded Popular Question Jul 24 comment How many integer partitions of a googol (10^100) into at most 60 parts I was hoping to see some explanation since I thought this kind of computation is not tractable. This answer is right but doesn't offer any insight :(. Jul 18 comment Conjugacy problem for small braid groups Yes, this would result a linear algorithm for conjugacy problem in $B_3$. Jul 17 asked Conjugacy problem for small braid groups Jun 4 awarded Popular Question Feb 17 accepted Random parking problem on a probability distribution Jan 2 asked Random parking problem on a probability distribution Jul 20 comment When is something too big to be a set? Is this something related to things like "the class of all ordinals"? It lead to a paradox if it's defined as a set. Jul 19 accepted Smallest area shape that covers all unit length curve Jul 19 revised Smallest area shape that covers all unit length curve edited tags