A closed category of reflexive topological abelian groups
Michael Barr (1977)
Cahiers de Topologie et Géométrie Différentielle Catégoriques
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Michael Barr (1977)
Cahiers de Topologie et Géométrie Différentielle Catégoriques
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Danchev, P. (2005)
Acta Mathematica Universitatis Comenianae. New Series
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W. Banaszczyk (1990)
Colloquium Mathematicae
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Abdelalim, S., Essannouni, H. (2003)
International Journal of Mathematics and Mathematical Sciences
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Igor Kříž (1986)
Commentationes Mathematicae Universitatis Carolinae
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Barr, Michael, Kleisli, Heinrich (2001)
Theory and Applications of Categories [electronic only]
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Jizhu Nan, Huifang Zhao (2012)
Czechoslovak Mathematical Journal
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Let be a finite nonabelian group, its associated integral group ring, and its augmentation ideal. For the semidihedral group and another nonabelian 2-group the problem of their augmentation ideals and quotient groups is deal with. An explicit basis for the augmentation ideal is obtained, so that the structure of its quotient groups can be determined.
Ana Agore, Gigel Militaru (2012)
Open Mathematics
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We prove that the bicrossed product of two groups is a quotient of the pushout of two semidirect products. A matched pair of groups (H;G; α; β) is deformed using a combinatorial datum (σ; v; r) consisting of an automorphism σ of H, a permutation v of the set G and a transition map r: G → H in order to obtain a new matched pair (H; (G; *); α′, β′) such that there exists a σ-invariant isomorphism of groups H α⋈β G ≅H α′⋈β′ (G, *). Moreover, if we fix the group H and the automorphism σ...
Mikaelian, Vahagn H. (2002)
International Journal of Mathematics and Mathematical Sciences
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