The structure of uniform modules over arbitrary rings is investigated by means of the method
of Γ-invariants. In particular, Γ-and Γ*-invariants are introduced for strongly uniform modules …

The natural categorial notion of a compact object, for which the covariant functor Hom
commutes with direct sums, was first time studied in the context of module theory in 60's …

A module over a ring R is R-projective if it is projective relative to R. This module-theoretic
notion is dual to the notion of an R-injective module that plays a key role in the classic Baer's …

Commentationes Mathematicae Universitatis Carolinae Page 1 Commentationes Mathematicae
Universitatis Carolinae Peter Kálnai; Jan Žemlička Products of small modules Commentationes …

The paper summarizes and partially deepens known results about von Neumann regular
rings over which there exist infinitely generated small modules ie such modules M that the …

90 every finitely generated module is∪-compact. If the converse is true, then the ring R is
said to be left steady. Many such rings were studied in the literature (see eg [2, 11, 12, 16]) …