If G is a graph with vertex set [n] then A 2[n] is G-intersecting if for all A, B A either A B = or there exist a A and b B such that a G b. The question of how large a k-un...
Let Tn denote the set of unrooted labeled trees of size n and let M be a particular (finite, unlabeled) tree. Assuming that every tree of Tn is equally likely, it is shown that the...
We analyze the weighted height of random tries built from independent strings of i.i.d. symbols on the finite alphabet {1, . . . , d}. The edges receive random weights whose distr...