Results 31 to 40 of about 51,537 (200)
Fully inert subgroups of Abelian p-groups [PDF]
Journal of Algebra, 2014 A subgroup \(H\) of an Abelian group \(G\) is \textit{fully inert} if the index \([\varphi(H):H\cap\varphi(H)]\) is finite for every endomorphism \(\varphi\) of \(G\). This paper is devoted to the study of fully inert subgroups of Abelian \(p\)-groups.
B. Goldsmith +2 more
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Fully inert subgroups of divisible Abelian groups [PDF]
, 2013 A subgroup H of an Abelian group G is said to be fully inert if the quotient (H + phi(H)/H is finite for every endomorphism phi of G. Clearly, this is a common generalization of the notions of fully invariant, finite and finite-index subgroups.
Dikranjan, Dikran +3 more
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An Extension of Nice Bases on Ulm Subgroups of Primary Abelian Groups
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2012 Suppose A is an Abelian p-group and is an ordinal such that A/pα A is a direct sum of countable groups. It is shown that A has a nice basis if, and only if, pα A has a nice basis. This strengthens an earlier result of ours in Bull. Allah. Math.
Danchev Peter
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A Note on the Square Subgroups of Decomposable Torsion-Free Abelian Groups of Rank Three
Annales Mathematicae Silesianae, 2018 A hypothesis stated in [16] is confirmed for the case of associative rings. The answers to some questions posed in the mentioned paper are also given. The square subgroup of a completely decomposable torsion-free abelian group is described (in both cases
Woronowicz Mateusz
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A Simple Classification of Finite Groups of Order p2q2 [PDF]
Mathematics Interdisciplinary Research, 2018 Suppose G is a group of order p2q2 where p>q are prime numbers and suppose P and Q are Sylow p-subgroups and Sylow q-subgroups of G, respectively. In this paper, we show that up to isomorphism, there are four groups of order p2q2 when Q and P are
Aziz Seyyed Hadi +2 more
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Intersections of Pure Subgroups in Abelian Groups [PDF]
Proceedings of the American Mathematical Society, 1981 It is shown that a subgroup H H of an abelian group G G is an intersection of pure subgroups of G G if and only if, for all primes p p and positive integers n n , p n g ∈ H {p ...
Boyer, D., Rangaswamy, K. M.
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Discussiones Mathematicae - General Algebra and Applications, 2017 It is studied how rank two pure subgroups of a torsion-free Abelian group of rank three influences its structure and type set. In particular, the criterion for such a subgroup B to be a direct summand of a torsion-free Abelian group of rank three with ...
Najafizadeh Alireza, Woronowicz Mateusz
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Green’s relations for 2 × 2 matrices over linearly ordered abelian groups [PDF]
Proceedings of the Estonian Academy of SciencesWe consider semigroups of 2 Ã 2 matrices over linearly ordered abelian groups with respect to multiplication, which is defined similarly to tropical algebra. We study Greenâs relations on such semigroups.
Marilyn Kutti, Valdis Laan
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Semi-Extraspecial Groups with an Abelian Subgroup of Maximal Possible Order [PDF]
Advances in Group Theory and Applications, 2018 Let p be a prime. A finite p-group G is defined to be semi-extraspecial if for every maximal subgroup N in Z(G) the quotient G/N is a an extraspecial group. In addition, we say that G is ultraspecial if G is semi-extraspecial and |G : G′| = |G′|^2.
Mark L. Lewis
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Elementary abelian 2 subgroups of compact Lie groups
, 2012 We classify elementary abelian 2 subgroups of compact simple Lie groups of adjoint type. This finishes the classification of elementary abelian $p$ subgroups of compact (or linear algebraic) simple groups of adjoint type.Comment: 40 pages, comments are ...
Yu, Jun
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