Independent generators for congruence subgroups of Hecke groups.
M.-L. Lang, C.-H. Lim, S.-P. Tan (1995)
Mathematische Zeitschrift
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Displaying similar documents to “Normalizers of intermediate congruence subgroups of the Hecke subgroups”
Independent generators for congruence subgroups of Hecke groups.
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On Groups whose Contranormal Subgroups are Normally Complemented
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2000 Mathematics Subject Classification: 20F16, 20E15. Groups in which every contranormal subgroup is normally complemented has been considered. The description of such groups G with the condition Max-n and such groups having an abelian nilpotent residual satisfying Min-G have been obtained.
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Colloquium Mathematicae
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We describe finite groups which contain just one conjugate class of self-normalizing subgroups.
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Megibben, Charles, Ullery, William (2001)
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Subnormalizers and embedding properties of subgroups of finite groups.
Mysovskikh, V.I. (2002)
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On E-S-supplemented subgroups of finite groups
Changwen Li, Xuemei Zhang, Xiaolan Yi (2013)
Colloquium Mathematicae
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The major aim of the present paper is to strengthen a nice result of Shemetkov and Skiba which gives some conditions under which every non-Frattini G-chief factor of a normal subgroup E of a finite group G is cyclic. As applications, some recent known results are generalized and unified.
Noncongruence subgroups of the Hecke groups G (...).
Gareth A. Jones (1980)
Journal für die reine und angewandte Mathematik
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Lavrov, K.G. (2005)
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On Finite Simple Groups whose Sylow 2-Subgroups have no Normal Elementary Subgroups of Order 8.
John G. Thompson, Zvonimir Janko (1970)
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Experimental Mathematics
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Subgroups normalized by the commutator subgroup of the Levi subgroup.
Kazakevich, V.G., Stavrova, A.K. (2004)
Zapiski Nauchnykh Seminarov POMI
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On supplements of subgroups of finite groups
Xianhua Li, A. Ballester-Bolinches (2006)
Bollettino dell'Unione Matematica Italiana
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In this paper the concept of s-pair for a subgroup of a finite group is introduced and studied. It provides a uniform way to study the influence of some families of subgroups on the structure of a finite group. A criterion for a finite group to belong to a saturated formation and necessary and sufficient conditions for solubility, supersolvability and nilpotence of a finite group are given.
Strong Tits alternative for subgroups of Coxeter groups.
Noskov, Guennadi A., Vinberg, Èrnest B. (2002)
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Hecke Operators on Congruence Subgroups of the Modular Group
R.A. Rankin (1967)
Mathematische Annalen
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