JOURNAL OF PURE AND APPLIED ALGEBRA VOLUME 126, NUMBERS 1-3, APRIL 1998 Abstracted/Indexed in: Current Contents: Physical, Chemical & Earth Sciences, Mathematical Reviews, PASCAL, Science Citation Index, Zentralblatt fir Mathematik. CONTENTS K. Auinger A method for the construction of complete congruences on lattices of pseudovarieties A. Berarducci, D. Dikranjan, M. Forti and S. Watson Cardinal invariants and independence results in the poset of precompact group topologies R. Brown and D.K. Harrison Abelian Frobenius kernels and modules over number rings D.C. Cohen and A./. Suciu Homology of iterated semidirect products of free groups D. Cubrié Embedding of a free cartesian-closed category into the category of sets D.N. Dikranjan and V.V. Uspenskij Categorically compact topological groups G. Freudenburg Actions of G, on A® defined by homogeneous derivations J. Huebschmann Smooth structures on certain moduli spaces for bundles on a surface N. lvanenko Some classes of linearizable polynomial maps E. Jurisich Generalized Kac-Moody Lie algebras, free Lie algebras and the structure of the Monster Lie algebra F. Kubo Non-commutative Poisson algebra structures on affine Kac-Moody algebras |. Lizasoain and G. Ochoa Projective G-sets P. Merisi and P. Vamos On rings whose Morita class is represented by matrix rings |. Peeva Exponential growth of Betti numbers Author Index Keep track of recently published papers via the journal’s home page on the WWW: http:// www.elsevier.ni/ locate) jpaa 0022-4049( 199804 )126:1-3;1-1