Although I studied set theory in graduate school, my main interests are currently in combinatorics. I especially enjoy problems related to the coupon collector's problem and also to alternating sign matrices.
6 Need for triangle congruency axioms oct 19 '11
4 Probability of a substring occurring in a string sep 12 '14
3 Counting the numbers with certain sum of digits. jan 29 '15
3 Statistical problem: how many books of different widths fit it into a self of a limited certain width? jan 15