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Found 99 Documents (Results 1–99)

An extension of M. C. R. Butler’s theorem on endomorphism rings. (English) Zbl 1436.16035

Droste, Manfred (ed.) et al., Groups, modules, and model theory – surveys and recent developments. In Memory of Rüdiger Göbel. Proceedings of the conference on new pathways between group theory and model theory, Mülheim an der Ruhr, Germany, February 1–4, 2016. Cham: Springer. 277-284 (2017).
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Basic subgroups and freeness, a counterexample. (English) Zbl 1192.20039

Göbel, Rüdiger (ed.) et al., Models, modules and abelian groups. In memory of A. L. S. Corner. Berlin: Walter de Gruyter (ISBN 978-3-11-019437-1/hbk). 63-73 (2008).
MSC:  20K20 20K27 03E05
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Disjoint non-free subgroups of Abelian groups. (English) Zbl 1140.20040

Andretta, Alessandro (ed.), Set theory. Recent trends and applications. Rome: Aracne; Napoli: Dipartimento di Matematica, Seconda Università di Napoli (ISBN 978-88-548-0982-6/hbk). Quaderni di Matematica 17, 1-24 (2006).
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Torsionless linearly compact modules. (English) Zbl 1110.20040

Goeters, Pat (ed.) et al., Abelian groups, rings, modules, and homological algebra. Selected papers of a conference on the occasion of Edgar Earle Enochs’ 72nd birthday, Auburn, AL, USA, September 9–11, 2004. Boca Raton, FL: Chapman & Hall/CRC (ISBN 1-58488-552-1/hbk). Lecture Notes in Pure and Applied Mathematics 249, 153-158 (2006).
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Generalized \(E\)-rings. (English) Zbl 1068.20057

Facchini, Alberto (ed.) et al., Rings, modules, algebras, and Abelian groups.
Proceedings of the algebra conference – Venezia 2002, Venice, Italy, June 3–8, 2002. New York, NY: Marcel Dekker (ISBN 0-8247-4807-7/pbk). Lect. Notes Pure Appl. Math. 236, 291-306 (2004).
MSC:  20K20 20K30 16S50
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Uniquely transitive torsion-free Abelian groups. (English) Zbl 1069.20049

Facchini, Alberto (ed.) et al., Rings, modules, algebras, and Abelian groups.
Proceedings of the algebra conference – Venezia 2002, Venice, Italy, June 3–8, 2002. New York, NY: Marcel Dekker (ISBN 0-8247-4807-7/pbk). Lect. Notes Pure Appl. Math. 236, 271-290 (2004).
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Reflexive subgroups of the Baer-Specker group and Martin’s axiom. (English) Zbl 1002.20031

Kelarev, A. V. (ed.) et al., Abelian groups, rings and modules. Proceedings of the AGRAM 2000 conference, Perth, Australia, July 9-15, 2000. Providence, RI: American Mathematical Society (AMS). Contemp. Math. 273, 145-158 (2001).
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Absolutely rigid systems and absolutely indecomposable groups. (English) Zbl 0952.20044

Eklof, Paul C. (ed.) et al., Abelian groups and modules. Proceedings of the international conference in Dublin, Ireland, August 10-14, 1998. Basel: Birkhäuser. Trends in Mathematics. 257-268 (1999).
Reviewer: S.Wallutis (Essen)
MSC:  20K20 03C55
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Non-existence of universals for classes like reduced torsion free Abelian groups under embeddings which are not necessarily pure. (English) Zbl 0936.20044

Droste, Manfred (ed.) et al., Advances in algebra and model theory. Selected surveys presented at conferences in Essen 1994 and Dresden 1995. Reading: Gordon and Breach Science Publishers. Algebra Log. Appl. 9, 229-286 (1997).
Reviewer: P.Eklof (Irvine)
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G.C.H. implies existence of many rigid almost free Abelian groups. (English) Zbl 0870.20038

Arnold, David M. (ed.) et al., Abelian groups and modules. Proceedings of the international conference at Colorado Springs, CO, USA, August 7–12, 1995. New York, NY: Marcel Dekker. Lect. Notes Pure Appl. Math. 182, 253-271 (1996).
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New nonfree Whitehead groups by coloring. (English) Zbl 0869.20039

Arnold, David M. (ed.) et al., Abelian groups and modules. Proceedings of the international conference at Colorado Springs, CO, USA, August 7–12, 1995. New York, NY: Marcel Dekker. Lect. Notes Pure Appl. Math. 182, 15-22 (1996).
Reviewer: R.Göbel (Essen)
MSC:  20K20 03E35
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On the existence of rigid \(\aleph_ 1\)-free Abelian groups of cardinality \(\aleph_ 1\). (English) Zbl 0842.20046

Facchini, Alberto (ed.) et al., Abelian groups and modules. Proceedings of the Padova conference, Padova, Italy, June 23-July 1, 1994. Dordrecht: Kluwer Academic Publishers. Math. Appl., Dordr. 343, 227-237 (1995).
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\(\text{Bext}^ 2(G,T)\) can be nontrivial, even assuming GCH. (English) Zbl 0820.20065

Göbel, Rüdiger (ed.) et al., Abelian group theory and related topics. Conference, August 1-7, 1993, Oberwolfach, Germany. Providence, RI: American Mathematical Society. Contemp. Math. 171, 287-294 (1994).
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A combinatorial principle equivalent to the existence of non-free Whitehead groups. (English) Zbl 0829.20075

Göbel, Rüdiger (ed.) et al., Abelian group theory and related topics. Conference, August 1-7, 1993, Oberwolfach, Germany. Providence, RI: American Mathematical Society. Contemp. Math. 171, 79-98 (1994).
Reviewer: R.Göbel (Essen)
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