Results 11 to 20 of about 6,156 (235)

The Abelian Kernel of an Inverse Semigroup

open access: yesMathematics, 2020
The problem of computing the abelian kernel of a finite semigroup was first solved by Delgado describing an algorithm that decides whether a given element of a finite semigroup S belongs to the abelian kernel.
A. Ballester-Bolinches   +1 more
doaj   +1 more source

$p$-groups with maximal elementary abelian subgroups of rank $2$ [PDF]

open access: yes, 2010
Let p be an odd prime number and G a finite p-group. We prove that if the rank of G is greater than p, then G has no maximal elementary abelian subgroup of rank 2.
Mazza, Nadia   +3 more
core   +1 more source

Connected components of the category of elementary abelian $p$-subgroups. [PDF]

open access: yes, 2008
We determine the maximal number of conjugacy classes of maximal elementary abelian subgroups of rank $2$ in a finite $p$-group $G$, for an odd prime $p$. Namely, it is $p$ if $G$ has rank at least $3$ and it is $p+1$ if $G$ has rank $2$.
Mazza, Nadia
core   +1 more source

Complementary dual abelian codes in group algebras of some finite abelian groups [PDF]

open access: yesITM Web of Conferences
Linear complementary dual codes have become an interesting sub-family of linear codes over finite fields since they can be practically applied in various fields such as cryptography and quantum error-correction. Recently, properties of complementary dual
Jitman Somphong
doaj   +1 more source

On Undecidability of Finite Subsets Theory for Torsion Abelian Groups

open access: yesMathematics, 2022
Let M be a commutative cancellative monoid with an element of infinite order. The binary operation can be extended to all finite subsets of M by the pointwise definition. So, we can consider the theory of finite subsets of M.
Sergey Mikhailovich Dudakov
doaj   +1 more source

Broué's conjecture for 2-blocks with elementary abelian defect groups of order 32 [PDF]

open access: yesAdvances in Group Theory and Applications, 2021
The first author recently classified the Morita equivalence classes of 2-blocks of finite groups with elementary abelian defect groups of order 32. In all but three cases he proved that the Morita equivalence class determines the inertial quotient of the
Cesare Giulio Ardito, Benjamin Sambale
doaj   +1 more source

Ranks for Families of Theories of Abelian Groups

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2019
The rank for families of theories is similar to Morley rank and can be considered as a measure for complexity or richness of these families. Increasing the rank by extensions of families we produce more rich families and obtaining families with the ...
In. I. Pavlyuk, S.V. Sudoplatov
doaj   +1 more source

On the Genus of Finite Abelian Groups

open access: yesEuropean Journal of Combinatorics, 1980
The genus of a group is the minimum genus for any Cayley color graph of the group. Using the structure theorem for finite abelian groups and appropriate current graphs, we construct quadrilateral embeddings of minimum degree for such groups in almost all cases where this is consistent with the Euler formula, thereby determining the genus for these ...
Mark Jungerman, Arthur T. White
openaire   +1 more source

Calabi–Yau threefolds and moduli of abelian surfaces I [PDF]

open access: yes, 2001
We describe birational models and decide the rationality/unirationality of moduli spaces $\cal A$d (and $\cal A$levd) of (1, d)-polarized Abelian surfaces (with canonical level structure, respectively) for small values of d.
Sorin Popescu   +3 more
core   +1 more source

Remark on subgroup intersection graph of finite abelian groups

open access: yesOpen Mathematics, 2020
Let G be a finite group. The subgroup intersection graph Γ(G)\text{Γ}(G) of G is a graph whose vertices are non-identity elements of G and two distinct vertices x and y are adjacent if and only if |〈x〉∩〈y〉|>1|\langle x\rangle \cap \langle y\rangle
Zhao Jinxing, Deng Guixin
doaj   +1 more source

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