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Endomorphism kernel property for finite groups [PDF]

open access: yesMathematica Bohemica, 2022
A group $G$ has the endomorphism kernel property (EKP) if every congruence relation $\theta$ on $G$ is the kernel of an endomorphism on $G$. In this note we show that all finite abelian groups have EKP and we show infinite series of finite non-abelian ...
Heghine Ghumashyan, Jaroslav Guričan
doaj   +1 more source

Some monounary algebras with EKP [PDF]

open access: yesMathematica Bohemica, 2020
An algebra $\cal A$ is said to have the endomorphism kernel property (EKP) if every congruence on $\cal A$ is the kernel of some endomorphism of $\cal A$. Three classes of monounary algebras are dealt with.
Emilia Halušková
doaj   +1 more source

L-Fuzzy Congruences and L-Fuzzy Kernel Ideals in Ockham Algebras

open access: yesJournal of Mathematics, 2021
In this paper, we study fuzzy congruence relations and kernel fuzzy ideals of an Ockham algebra A,f, whose truth values are in a complete lattice satisfying the infinite meet distributive law.
Teferi Getachew Alemayehu   +2 more
doaj   +1 more source

On GE-algebras

open access: yesBulletin of the Section of Logic, 2021
Hilbert algebras are important tools for certain investigations in intuitionistic logic and other non-classical logic and as a generalization of Hilbert algebra a new algebraic structure, called a GE-algebra (generalized exchange algebra), is introduced ...
Ravikumar Bandaru   +2 more
doaj   +1 more source

Connectome spatial smoothing (CSS): Concepts, methods, and evaluation

open access: yesNeuroImage, 2022
Structural connectomes are increasingly mapped at high spatial resolutions comprising many hundreds—if not thousands—of network nodes. However, high-resolution connectomes are particularly susceptible to image registration misalignment, tractography ...
Sina Mansour L   +3 more
doaj   +1 more source

A characterization of a ∼ admissible congruence on a weakly type B semigroup

open access: yesOpen Mathematics, 2023
In this article, the notions of ∼ \sim admissible congruences and ∼ \sim normal congruences on a weakly type B semigroup are characterized and the relationship between ∼ \sim admissible congruences and ∼ \sim normal congruences is investigated.
Li Chunhua   +3 more
doaj   +1 more source

Distributive lattices with strong endomorphism kernel property as direct sums [PDF]

open access: yesCategories and General Algebraic Structures with Applications, 2020
Unbounded distributive lattices which have strong endomorphism kernel property (SEKP) introduced by Blyth and Silva in [3] were fully characterized in [11] using Priestley duality (see Theorem  2.8}). We shall determine the structure of special elements (
Jaroslav Gurican
doaj   +1 more source

Kernel L-Ideals and L-Congruence on a Subclass of Ockham Algebras

open access: yesJournal of Mathematics, 2022
In this paper, we study L-congruences and their kernel in a subclass Kn,0 of the variety of Ockham algebras A. We prove that the class of kernel L-ideals of an Ockham algebra forms a complete Heyting algebra.
Teferi Getachew Alemayehu   +2 more
doaj   +1 more source

Strong endomorphism kernel property for monounary algebras [PDF]

open access: yesMathematica Bohemica, 2018
All monounary algebras which have strong endomorphism kernel property are described.
Emília Halušková
doaj   +1 more source

Spinal code based on lightweight hash function [PDF]

open access: yesArchives of Electrical Engineering, 2019
A spinal code is the type of rateless code, which has been proved to be capacity- achieving over both a binary symmetric channel (BSC) and an additive white Gaussian noise (AWGN) channel. Rateless spinal codes employ a hash function as a coding kernel to
Lina Wang, Xinran Li
doaj   +1 more source

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