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20K25 Direct sums, direct products, etc. (40 articles)

• Dimitric, Radoslav: Kappa-Slender Modules. (English). Communications in Mathematics, vol. 28 (2020), issue 1, pp. 1-12
• Arnold, David M.; Mader, Adolf; Mutzbauer, Otto; Solak, Ebru: Indecomposable (1,3)-groups and a matrix problem. (English). Czechoslovak Mathematical Journal, vol. 63 (2013), issue 2, pp. 307-355
• Dikranjan, D.; Toller, D.: Productivity of the Zariski topology on groups. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 54 (2013), issue 2, pp. 219-237
• Danchev, Peter: Notes on countable extensions of $p^{\omega +n}$-projectives. (English). Archivum Mathematicum, vol. 44 (2008), issue 1, pp. 37-40
• Danchev, Peter V.: On extensions of primary almost totally projective abelian groups. (English). Mathematica Bohemica, vol. 133 (2008), issue 2, pp. 149-155
• Růžička, Pavel: Countable chains of distributive lattices as maximal semilattice quotients of positive cones of dimension groups. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 47 (2006), issue 1, pp. 11-20
• Astuti, Pudji; Wimmer, Harald K.: Regular submodules of torsion modules over a discrete valuation domain. (English). Czechoslovak Mathematical Journal, vol. 56 (2006), issue 2, pp. 349-357
• Albrecht, Ulrich: $A$-projective resolutions and an Azumaya theorem for a class of mixed abelian groups. (English). Czechoslovak Mathematical Journal, vol. 51 (2001), issue 1, pp. 73-93
• Fuchs, L.; Viljoen, G.: Valuated Butler groups of special type. (English). Czechoslovak Mathematical Journal, vol. 49 (1999), issue 3, pp. 507-516
• Albrecht, Ulrich; Jeong, Jong-Woo: Homomorphisms between $A$-projective Abelian groups and left Kasch-rings. (English). Czechoslovak Mathematical Journal, vol. 48 (1998), issue 1, pp. 31-43
• Goeters, H. Pat; Ullery, William: Quasi-balanced torsion-free groups. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 39 (1998), issue 3, pp. 431-443
• Hill, Paul; Ullery, William: Almost totally projective groups. (English). Czechoslovak Mathematical Journal, vol. 46 (1996), issue 2, pp. 249-258
• Hill, Paul: Almost coproducts of finite cyclic groups. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 36 (1995), issue 4, pp. 795-804
• Uspenskii, V. V.: On the Suslin number of subgroups of products of countable groups. (English). Acta Universitatis Carolinae. Mathematica et Physica, vol. 36 (1995), issue 2, pp. 85-87
• Albrecht, Ulrich: The construction of $A$-solvable Abelian groups. (English). Czechoslovak Mathematical Journal, vol. 44 (1994), issue 3, pp. 413-430
• Rangaswamy, K. M.: A property of $B_2$-groups. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 35 (1994), issue 4, pp. 627-631
• El Bashir, Robert: A new proof of Prüfer's theorem. (English). Acta Universitatis Carolinae. Mathematica et Physica, vol. 34 (1993), issue 1, pp. 101-104
• Metelli, Claudia: On direct sums of $\Cal B^{(1)}$-groups. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 34 (1993), issue 3, pp. 587-591
• Müller, Edgar; Mutzbauer, Otto: Regularität in torsionsfreien abelschen Gruppen. (German) [Regularity in torsion-free abelian groups]. Czechoslovak Mathematical Journal, vol. 42 (1992), issue 2, pp. 279-288
• Dimitrić, Radoslav: On chains of free modules over valuation domains. (English). Czechoslovak Mathematical Journal, vol. 37 (1987), issue 3, pp. 400-406
• Kříž, Igor: Iterated countable products and sums of the infinite cyclic group. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 27 (1986), issue 3, pp. 491-497
• Bican, Ladislav; Hora, Jaroslav: On a class of locally completely decomposable Abelian groups. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 27 (1986), issue 2, pp. 307-323
• O'Neill, John D.: On summands of direct products of Abelian groups. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 24 (1983), issue 3, pp. 407-413
• Bican, Ladislav: The splitting of the tensor product of two mixed abelian groups of rank one. (English). Czechoslovak Mathematical Journal, vol. 33 (1983), issue 2, pp. 193-211
• Fuchs, László; Irwin, J. M.: On elongations of totally projective $p$-groups by $p^{\omega+n}$-projective $p$-groups. (English). Czechoslovak Mathematical Journal, vol. 32 (1982), issue 4, pp. 511-515
• Bican, Ladislav: A note on factor-splitting Abelian groups of rank two. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 22 (1981), issue 3, pp. 569-578
• Procházka, Ladislav: A note on $p$-adic completion of torsion-free abelian groups. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 21 (1980), issue 4, pp. 795-803
• Bican, Ladislav: A note on the splitting length of a finite direct sum of mixed Abelian groups of rank one. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 21 (1980), issue 4, pp. 739-747
• Megibben, Charles K.: Separable mixed groups. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 21 (1980), issue 4, pp. 755-768
• Bican, Ladislav: Pure subgroups split. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 20 (1979), issue 2, pp. 283-292
• Bican, Ladislav: Factor-splitting Abelian groups of arbitrary rank. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 19 (1978), issue 4, pp. 653-672
• Bican, Ladislav: A splitting criterion for Abelian groups. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 19 (1978), issue 4, pp. 763-774
• Benabdallah, Khalid; Bradley, Robert: Sur les groupes quasi-purs-projectifs sans torsion. (French) [On quasi-pure-projective groups without torsion]. Commentationes Mathematicae Universitatis Carolinae, vol. 18 (1977), issue 1, pp. 93-100
• Bican, Ladislav: Factor-splitting Abelian groups of finite rank. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 17 (1976), issue 3, pp. 473-480
• Gardner, Barry J.; Jackett, David R.: Rings on certain classes of torsion-free Abelian groups. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 17 (1976), issue 3, pp. 493-506
• Bican, Ladislav: Splitting of pure subgroups. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 17 (1976), issue 2, pp. 241-249
• Bečvář, Jindřich; Jambor, Pavel: On general concept of basic subgroups. II. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 14 (1973), issue 3, pp. 471-491
• Procházka, Ladislav: A consequence of a theorem of L. Fuchs. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 13 (1972), issue 1, pp. 177-179
• Jambor, Pavel; Bečvář, Jindřich: On general concept of basic subgroups. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 13 (1972), issue 4, pp. 745-761
• Procházka, Ladislav: Прямые суммы групп типа ${\cal P}^+$. (Russian) [Direct sums of groups of type ${\cal P}^+$]. Commentationes Mathematicae Universitatis Carolinae, vol. 8 (1967), issue 1, pp. 85-114