np-hardness fl.formal-languages lg.learning regular-expressions asked Oct 1, 2010 at 20:12

graph-theory co.combinatorics asked Aug 6, 2011 at 23:50

graph-theory asked Feb 4, 2013 at 15:23

co.combinatorics permutations extremal-graph-theory ramsey-theory asked Jan 30, 2015 at 15:03

ds.algorithms graph-theory asked May 14, 2011 at 9:27

pr.probability co.combinatorics asked Dec 12, 2012 at 21:53

pr.probability permutations asked May 12, 2014 at 10:16

chess-variants kings captures asked Jan 7, 2015 at 21:57

co.combinatorics inequalities asked Sep 19, 2013 at 11:24