Results 21 to 30 of about 4,598 (226)

𝒩-Structures Applied to Closed Ideals in BCH-Algebras

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2010
The notions of 𝒩-subalgebras and 𝒩-closed ideals in BCH-algebras are introduced, and the relation between 𝒩-subalgebras and 𝒩-closed ideals is considered.
Young Bae Jun   +2 more
doaj   +2 more sources

Hyperfuzzy Ideals in BCK/BCI-Algebras

open access: yesMathematics, 2017
The notions of hyperfuzzy ideals in B C K / B C I -algebras are introduced, and related properties are investigated. Characterizations of hyperfuzzy ideals are established.
Seok-Zun Song   +2 more
doaj   +2 more sources

Complex intuitionistic fuzzy Lie subalgebras under norms [PDF]

open access: yesNotes on IFS
The purpose of this paper is to define the concepts of complex intuitionistic fuzzy Lie subalgebras and complex intuitionistic fuzzy Lie ideals with respect to norms (t-norm T and s-norm S) of Lie subalgebras and discuss their relationship them with Lie ...
Rasul Rasuli
doaj   +2 more sources

On imaginable T-fuzzy subalgebras and imaginable T-fuzzy closed ideals in BCH-algebras [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
We inquire further into the properties on fuzzy closed ideals. We give a characterization of a fuzzy closed ideal using its level set, and establish some conditions for a fuzzy set to be a fuzzy closed ideal.
Young Bae Jun, Sung Min Hong
doaj   +2 more sources

Ideals and hereditary subalgebras in operator algebras [PDF]

open access: yesStudia Mathematica, 2012
This paper may be viewed as having two aims. First, we continue our study of algebras of operators on a Hilbert space which have a contractive approximate identity, this time from a more Banach algebraic point of view. Namely, we mainly investigate topics concerned with the ideal structure, and hereditary subalgebras (HSA's), which are in some sense ...
Almus, Melahat   +2 more
openaire   +4 more sources

On the structure of Leibniz algebras whose subalgebras are ideals or core-free

open access: yes, 2020
An algebra \(L\) over a field \(F\) is said to be a Leibniz algebra (more precisely, a left Leibniz algebra) if it satisfies the Leibniz identity: \([[a, b], c] = [a, [b, c]] - [b, [a, c]]\) for all \(a, b, c \in L\). Leibniz algebras are generalizations
V. Chupordia   +2 more
semanticscholar   +2 more sources

Ideals and Homomorphism Theorems of Fuzzy Associative Algebras

open access: yesMathematics
Based on the definitions of fuzzy associative algebras and fuzzy ideals, it is proven that the intersections of fuzzy subalgebras are fuzzy subalgebras, and the intersections of fuzzy ideals are fuzzy ideals.
Xiaoman Yang, Xin Zhou
doaj   +2 more sources

A characterisation of Lie algebras using ideals and subalgebras [PDF]

open access: yesBulletin of the London Mathematical Society, 2022
We prove that if, for a non‐trivial variety of non‐associative algebras, every subalgebra of every free algebra is free and I2$I^2$ is an ideal whenever I$I$ is an ideal, then this variety coincides with the variety of all Lie algebras.
V. Dotsenko, Xabier Garc'ia-Mart'inez
semanticscholar   +1 more source

L-fuzzy ideals and L-fuzzy subalgebras of Novikov algebras

open access: yesOpen Mathematics, 2019
In this paper, we apply the concept of fuzzy sets to Novikov algebras, and introduce the concepts of L-fuzzy ideals and L-fuzzy subalgebras. We get a sufficient and neccessary condition such that an L-fuzzy subspace is an L-fuzzy ideal. Moreover, we show
Zhou Xin, Chen Liangyun, Chang Yuan
doaj   +2 more sources

Abelian subalgebras and ideals of maximal dimension in Zinbiel algebras [PDF]

open access: yesCommunications in Algebra, 2022
In this paper, we compare the abelian subalgebras and ideals of maximal dimension for finite-dimensional Zinbiel algebras. We study Zinbiel algebras containing maximal abelian subalgebras of codimension 1 and supersolvable Zinbiel algebras in which such ...
M. Ceballos, D. Towers
semanticscholar   +1 more source

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