Results 11 to 20 of about 17,323 (202)

Higher Regularity, Inverse and Polyadic Semigroups

open access: yesUniverse, 2021
We generalize the regularity concept for semigroups in two ways simultaneously: to higher regularity and to higher arity. We show that the one-relational and multi-relational formulations of higher regularity do not coincide, and each element has several
Steven Duplij
doaj   +1 more source

Idempotents in an ultrametric Banach algebra

open access: yesCubo, 2021
Let IK be a complete ultrametric field and let A be a unital commutative ultrametric Banach IK-algebra. Suppose that the multiplicative spectrum admits a partition in two open closed subsets.
Alain Escassut
doaj   +1 more source

Abundant semigroups with medial idempotents [PDF]

open access: yesCategories and General Algebraic Structures with Applications, 2021
The effect of the existence of a medial or related idempotent in any abundant semigroup is the subject of this paper. The aim is to naturally order any abundant semigroup $S$ which contains an ample multiplicative medial idempotent $u$ in a way that ...
Abdulsalam El-Qallali
doaj   +1 more source

Group codes over binary tetrahedral group

open access: yesJournal of Mathematical Cryptology, 2022
In this article, the group algebra K[T]{\mathcal{K}}\left[{\mathscr{T}}] of the binary tetrahedral group T{\mathscr{T}} over a splitting field K{\mathcal{K}} of T{\mathscr{T}} with char(K)≠2,3{\rm{char}}\left({\mathcal{K}})\ne 2,3 is studied and the ...
Dadhwal Madhu, Pankaj
doaj   +1 more source

Primitive Idempotents of Schur Rings [PDF]

open access: yes, 2014
In this paper, we explore the nature of central idempotents of Schur rings over finite groups. We introduce the concept of a lattice Schur ring and explore properties of these kinds of Schur rings.
Misseldine, Andrew
core   +1 more source

Skew Pairs of Idempotents in Partial Transformation Semigroups

open access: yesMathematics, 2021
Let S be a regular semigroup. A pair (e,f) of idempotents of S is said to be a skew pair of idempotents if fe is idempotent, but ef is not. T. S. Blyth and M. H. Almeida (T. S. Blyth and M. H.
Panuwat Luangchaisri, Thawhat Changphas
doaj   +1 more source

Determination of the biquaternion divisors of zero, including the idempotents and nilpotents [PDF]

open access: yes, 2008
The biquaternion (complexified quaternion) algebra contains idempotents (elements whose square remains unchanged) and nilpotents (elements whose square vanishes). It also contains divisors of zero (elements with vanishing norm).
Alfsmann, Daniel, Sangwine, Stephen J.
core   +2 more sources

NeutroAlgebra of Neutrosophic Triplets using {Zn, ×} [PDF]

open access: yesNeutrosophic Sets and Systems, 2020
Smarandache in 2019 has generalized the algebraic structures to NeutroAlgebraic structures and AntiAlgebraic structures. In this paper, authors, for the first time, define the NeutroAlgebra of neutrosophic triplets group under usual+ and x, built using ...
Vasantha Kandasamy   +2 more
doaj   +1 more source

Code algebras, axial algebras and VOAs [PDF]

open access: yes, 2018
Inspired by code vertex operator algebras (VOAs) and their representation theory, we define code algebras, a new class of commutative non-associative algebras constructed from binary linear codes. Let $C$ be a binary linear code of length $n$.
Castillo-Ramirez, Alonso   +2 more
core   +3 more sources

DYNAMIC PROJECTION OPERATOR METHOD IN THE THEORY OF HYPERBOLIC SYSTEMS OF PARTIAL DIFFERENTIAL EQUATIONS WITH VARIABLE COEFFICIENTS

open access: yesTASK Quarterly, 2017
We consider a generalization of the projection operator method for the case of the Cauchy problem in 1D space for systems of evolution differential equations of first order with variable coefficients.
SERGEY LEBLE, IRINA VERESHCHAGINA
doaj   +1 more source

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