On factor coverings of groups
Richard E. Phillips, J. M. Plotkin (1975)
Colloquium Mathematicae
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Richard E. Phillips, J. M. Plotkin (1975)
Colloquium Mathematicae
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Jacek Michalski (1981)
Archivum Mathematicum
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Grigorian, S.A., Gumerov, R.N., Kazantsev, A.V. (2000)
Lobachevskii Journal of Mathematics
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Štefan Porubský, Johanan Schönheim (2003)
Mathematica Slovaca
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Wiesław A. Dudek (2007)
Discussiones Mathematicae - General Algebra and Applications
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This is a survey of the results obtained by K. Głazek and his co-workers. We restrict our attention to the problems of axiomatizations of n-ary groups, classes of n-ary groups, properties of skew elements and homomorphisms induced by skew elements, constructions of covering groups, classifications and representations of n-ary groups. Some new results are added too.
Zhang, Jiping (2006)
Serdica Mathematical Journal
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2000 Mathematics Subject Classification: 20D60,20E15. As is known, if a finite solvable group G is an n-sum group then n − 1 is a prime power. It is an interesting problem in group theory to study for which numbers n with n-1 > 1 and not a prime power there exists a finite n-sum group. In this paper we mainly study finite nonsolvable n-sum groups and show that 15 is the first such number. More precisely, we prove that there exist no finite 11-sum or 13-sum groups and there...
Jan Ambrosiewicz (1986)
Rendiconti del Seminario Matematico della Università di Padova
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M. Chiara Tamburini, Paola Zucca (2000)
Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Lincei. Matematica e Applicazioni
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We show that the special linear group , over the integers, is not -generated. This gives a negative answer to a question of M. Conder.