Results 1 to 10 of about 915 (118)
Fuzzy Set Theory Applied on Autometrized Algebra [version 1; peer review: 2 approved, 1 approved with reservations] [PDF]
F1000ResearchThis paper introduces fuzzy subalgebras of autometrized algebras and studies their properties. Also, we present fuzzy ideals of autometrized algebras and provide examples to illustrate our findings. We examine the homomorphisms of both the images and the
Gebrie Yeshiwas Tilahun
doaj +2 more sources
Composition series on (Rees) congruences of S-acts. [PDF]
Categories and General Algebraic Structures with Applications, 2023 In this paper, we study composition series of subacts or congruences of S-acts. It is shown that composition series of subacts are exactly those that are both Rees artinian and Rees noetherian, i.e.
Roghaieh Khosravi, Mohammad Roueentan
doaj +1 more source
Teaching Congruences in Connection with Diophantine Equations
Education Sciences, 2021 The presented paper is devoted to the new teaching model of congruences of computer science students within the subject of discrete mathematics at universities.
Ďuriš Viliam +3 more
doaj +1 more source
A characterization of a ∼ admissible congruence on a weakly type B semigroup
Open 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
Ratio Mathematica, 2022 Alan Day’s doubling construction of intervals has been found to affect some properties of the lattice of weak congruences of chains. Here, in this paper, we study how it affects the property of 0-distributivity of the lattice of weak congruences of ...
V Gladys Mano Amirtha, Premalatha D.
doaj +1 more source
Admissible congruences on type B semigroups
Open Mathematics, 2022 The main aim of this article is to study admissible congruences on a type B semigroup. First, we give characterizations of the minimum admissible congruence whose trace is a normal congruence on a type B semigroup.
Li Chunhua +3 more
doaj +1 more source
Congruences modulo $4$ for the number of $3$-regular partitions
Comptes Rendus. Mathématique, 2023 The last decade has seen an abundance of congruences for $b_\ell (n)$, the number of $\ell $-regular partitions of $n$. Notably absent are congruences modulo $4$ for $b_3(n)$. In this paper, we introduce Ramanujan type congruences modulo $4$ for $b_3(2n)$
Ballantine, Cristina, Merca, Mircea
doaj +1 more source
The lattice of (2, 1)-congruences on a left restriction semigroup
Open Mathematics, 2022 All the (2, 1)-congruences on a left restriction semigroup become a complete sublattice of its lattice of congruences. The aim of this article is to study certain fundamental properties of this complete sublattice.
Liu Haijun, Guo Xiaojiang
doaj +1 more source
Families of Ramanujan-Type Congruences Modulo 4 for the Number of Divisors
Axioms, 2022 In this paper, we explore Ramanujan-type congruences modulo 4 for the function σ0(n), counting the positive divisors of n. We consider relations of the form σ08(αn+β)+r≡0(mod4), with (α,β)∈N2 and r∈{1,3,5,7}.
Mircea Merca
doaj +1 more source
All Linear-Time Congruences for Familiar Operators [PDF]
Logical Methods in Computer Science, 2013 The detailed behaviour of a system is often represented as a labelled transition system (LTS) and the abstract behaviour as a stuttering-insensitive semantic congruence. Numerous congruences have been presented in the literature. On the other hand, there
Antti Valmari
doaj +1 more source