Results 21 to 30 of about 455,559 (284)
The theorems of Schur and Baer: a survey [PDF]
International Journal of Group Theory, 2015 This paper gives a short survey of some of the known results generalizing the theorem, credited to I. Schur, that if the central factor group is finite then the derived subgroup is also finite.
Martyn Dixon +2 more
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Groups Factorized by Pairwise Permutable Abelian Subgroups of Finite Rank [PDF]
Advances in Group Theory and Applications, 2016 It is proved that a group which is the product of pairwise permutable abelian subgroups of finite Prüfer rank is hyperabelian with finite Prüfer rank; in the periodic case the Sylow subgroups of such a product are described.
Bernhard Amberg, Yaroslav P. Sysak
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Inverse zero-sum problems and algebraic invariants [PDF]
, 2008 In this article, we study the maximal cross number of long zero-sumfree sequences in a finite Abelian group. Regarding this inverse-type problem, we formulate a general conjecture and prove, among other results, that this conjecture holds true for finite
Girard, Benjamin
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Finite Homomorphic Images of Groups of Finite Rank
Siberian Mathematical Journal, 2018 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Azarov, D. N., Romanovskii, N. S.
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Group actions on spheres with rank one isotropy [PDF]
, 2015 We show that a rank two finite group G admits a finite G-CW-complex X homotopy equivalent to a sphere, with rank one prime power isotropy, if and only if G does not p'-involve Qd(p) for any odd prime p.
Hambleton, I., Yalcin, E.
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Karpatsʹkì Matematičnì Publìkacìï, 2021 A group $G$ has a finite special rank $r$ if every finitely generated subgroup of $G$ is generated by at most $r$ elements and there is a finitely generated subgroup of $G$ which has exactly $r$ generators.
T.V. Velychko
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Planarity ranks for varieties of equationally noetherian semigroups [PDF]
Известия Саратовского университета. Новая серия: Математика. Механика. ИнформатикаThe problem of describing semigroup varieties with finite planarity rank is researched. In addition to the previously obtained results the author finds new countable infinite series of semigroup varieties with finite planarity rank.
Solomatin, Denis Vladimirovich
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Finiteness results for subgroups of finite extensions [PDF]
, 2014 We discuss in the context of finite extensions two classical theorems of Takahasi and Howson on subgroups of free groups. We provide bounds for the rank of the intersection of subgroups within classes of groups such as virtually free groups, virtually ...
Araujo, Vitor +2 more
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Colloquium Mathematicum, 1997 This paper contains a survey of a special class of examples of systems constructed in ergodic theory. Its aim is to gather definitions related to notions of rank, to describe the relations between them, and to show how these notions apply to some classical systems.
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Asymptotic Properties of Spearman's Rank Correlation for Variables with Finite Support. [PDF]
PLoS ONE, 2016 The asymptotic variance and distribution of Spearman's rank correlation have previously been known only under independence. For variables with finite support, the population version of Spearman's rank correlation has been derived.
Petra Ornstein, Johan Lyhagen
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