Results 11 to 20 of about 74,629 (244)

Correction to: “The typeset and cotypeset of a rank 2 abelian group” [PDF]

open access: bronzePacific Journal of Mathematics, 1981
Let \(A\) be a reduced rank 2 torsion-free abelian group. Denote by \(T\) the set of types of elements of \(A\), and by \(T\mathrm{'}\) the set of types of rank 1 torsion-free factor groups of A. The author characterizes such pairs \((T,T\mathrm{'})\), and counts the number of isomorphism and quasi-isomorphism classes of rank 2 groups realizing each ...
Phillip Schultz
  +12 more sources

$D$-rank of Abelian group [PDF]

open access: yesČasopis pro pěstování matematiky, 1957
V. Dlab
semanticscholar   +2 more sources

Remark on the $p$-rank of torsion free abelian groups of infinite rank [PDF]

open access: bronzeCzechoslovak Mathematical Journal, 1963
Zusammenfassung des Autors:
Ladislav Procházka
openalex   +3 more sources

Rings on Abelian torsion-free groups of finite rank [PDF]

open access: greenBeiträge zur Algebra und Geometrie / Contributions to Algebra and Geometry, 2021
This paper will be published in Beitr\"{a}ge zur Algebra und Geometrie / Contributions to Algebra and ...
Е. И. Компанцева   +1 more
openalex   +4 more sources

On the Prüfer rank of mutually permutable products of abelian groups [PDF]

open access: yesAnnali di Matematica Pura ed Applicata (1923 -), 2018
The first and third authors are supported by the Grant MTM2014-54707-C3-1-P from the Ministerio de Economia y Competitividad, Spain, and FEDER, European Union. The first and fourth authors are supported by Prometeo/2017/057 of Generalitat, Valencian Community, Spain.
A. Ballester-Bolinches   +3 more
semanticscholar   +5 more sources

Minimal rank of abelian group matrices

open access: gold, 1996
published_or_final_version ; toc ; abstract ; Mathematics ; Master ; Master of ...
Yip-Cheung Chan
openalex   +3 more sources

Extensions of Abelian Groups of Finite Rank [PDF]

open access: yesProceedings of the American Mathematical Society, 1975
Every abelian group X oi finite rank arises as the middle group of an extension e: 0 -> F -> A" -> T->0 where F is free of finite rank zz and T is torsion with the p-ranks of T finite for all primes p. Given such a T and F we study the equivalence classes of such extensions which result from stipulating that two extensions e . : 0 -» F -> X. -» T -> 0,
Khabbaz, S. A., Toubassi, E. H.
openaire   +2 more sources

Acentralizers of Abelian groups of rank 2

open access: yesHacettepe Journal of Mathematics and Statistics, 2020
Let $G$ be a group. The Acentralizer of an automorphism $\alpha$ of $G$, is the subgroup of fixed points of $\alpha$, i.e.,  $C_G(\alpha)= \{g\in G \mid \alpha(g)=g\}$. We show that if $G$ is a  finite  Abelian  $p$-group of rank $2$, where $p$ is an odd prime, then the number of Acentralizers of $G$ is exactly the number of subgroups of $G$.
Zahar MOZAFAR, Bijan TAERİ
openaire   +3 more sources

ON SOME VERTEX-TRANSITIVE DISTANCE-REGULAR ANTIPODAL COVERS OF COMPLETE GRAPHS

open access: yesUral Mathematical Journal, 2022
In the present paper, we classify abelian antipodal distance-regular graphs \(\Gamma\) of diameter 3 with the following property: \((*)\) \(\Gamma\) has a transitive group of automorphisms \(\widetilde{G}\) that induces a primitive almost simple ...
Ludmila Yu. Tsiovkina
doaj   +1 more source

On the LHC signatures of $$SU(5)\times U(1)'$$ S U ( 5 ) × U ( 1 ) ′ F-theory motivated models

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
We study low energy implications of F-theory GUT models based on SU(5) extended by a $$U(1)'$$ U ( 1 ) ′ symmetry which couples non-universally to the three families of quarks and leptons.
A. Karozas   +3 more
doaj   +1 more source

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