On the Hilbert functions of sets of points in P^1 x P^1 x P^1
  Let H_X be the trigraded Hilbert function of a set X of reduced points in P^1 x P^1 x P^1. We show how to extract some geometric information about X from H_X. This note generalizes a similar result of Giuffrida, Maggioni, and Ragusa about sets of points in P^1 x P^1. 
Elena Guardo and Adam Van Tuyl
math.AC math.AG