................................................................................................................................................ iii EXECUTIVE SUMMARYâ€¦ (More)

The endomorphism ring of the group of all sequences of integers, the Baer-Specker group, is isomorphic to the ring of row finite infinite matrices over the integers. The product bases of that groupâ€¦ (More)

We determine the infinite sequences (ak) of integers that can be generated by polynomials with integral coefficients, in the sense that for each finite initial segment of length n there is anâ€¦ (More)

A quasi-decomposition theorem is obtained for a torsion free abelian group with quasi-endomorphism algebra satisfying the minimum condition on left ideals. Several quasi-decomposition theorems of J.â€¦ (More)

Slender rings and their products are characterized in terms of algebraic and topological properties. Possible limitations on uncountable products of such rings are discussed. Ring, module, andâ€¦ (More)