Abelian Group Theory: Proceedings of the Oberwolfach Conference, January 12-17, 1981

ISBN-13: 9783540108559 / Niemiecki / Miękka / 1981 / 447 str.

R. Gbel; E. Walker

Spis treści

Reinhold Baer's work on abelian groups.- Pure subgroups of finite rank completely decomposable groups.- On special balanced supgroups of torsionfree separable abelian groups.- Abelian groups finitely generated over their endomorphism rings.- Relations between hom, ext, and tensor product for certain categories of modules over dedekind domains.- On direct decompositions of torsion free abelian groups of rank 4.- Hyper-indecomposable groups.- On a paper of I.fleischer.- Weak compactness and the structure of Ext(A,?).- On the p-ranks of Ext(A, G), assuming CH.- A cardinal-determined projectivity condition for abelian groups and modules.- ?1-Separable groups of mixed type.- p?-Basic subgroups of torsion free abelian groups.- A new class of subgroups of ??oZ.- Groups of integer-valuated functions.- Iterated direct sums and products of modules.- A general theory of slender groups and fuchs-44-groups.- Homomorphisms between cartesian powers of an abelian group.- Algebraic compactness of filter quotients.- Cotorsion modules over Noetherian hereditary rings.- Basic concepts of functorial topologies.- Automorphism groups of locally compact abelian groups.- Zur Kennzeichnung Von Elationen.- Extensions of isomorphisms between subgroups.- The duals of totally projective groups.- Isotype subgroups of totally projective groups.- Classification theory of abelian groups, II: Local theory.- Valuated p-groups.- Mixed local groups.- Nice subgroups of valuated groups.- Diagrams over ordered sets: A simple model of abelian group theory.- Kawada's theorem.