Abstracts

James E. Carter Module structure of integers in metacyclic extensions
Michael Filaseta The irreducibility of the Bessel polynomials
Jon Grantham Carmichael numbers with exactly k prime factors
Bruce Landman Monochromatic Quasi-Progressions and Monochromatic Sequences Whose Gaps Belong to {d, 2d, ... , md}
Seva Lev Restricted set addition in Abelian groups
Greg Martin Polynomials and Smooth Numbers
Paul Young Kummer Congruences for higher-order Bernoulli numbers