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This work connects two mathematical fields - computational complexity and interval linear algebra. It introduces the basic topics of interval linear algebra - regularity and singularity, full column rank, solving a linear system, deciding…

Computational Complexity · Computer Science 2016-02-02 Jaroslav Horáček , Milan Hladík , Michal Černý

In this paper we introduce the new concepts of supersymmetric and self-symmetric gaps of a numerical semigroup with two generators. Those concepts are based on certain symmetries of the gaps of the semigroup with respect to their Wilf…

Combinatorics · Mathematics 2025-01-17 Patricio Almirón , Julio José Moyano-Fernández

We explicitly describe all the isolated gaps of any numerical semigroup of embedding dimension two, and we give an exact formula for the number of isolated gaps of these numerical semigroups.

Combinatorics · Mathematics 2024-06-17 Shubh N. Singh , Ranjan K. Ram

In this article, we give some characterization results offuzzy left(right) ideals, fuzzy generalized bi-ideals and -fuzzy bi-ideals of an LA-semigroup. We also give some characterizations of LA-semigroups by the properties of fuzzy ideals.

General Mathematics · Mathematics 2013-01-15 Muhammad aslam , Saleem Abdullah , Muhammad Atique Khan

We describe new families of Eliahou semigroups, encompassing previous families described by Delgado, Eliahou and Fromentin, and Bras-Amor\'os. A crucial parameter is a Farey interval associated to the semigroup. We show that these…

Combinatorics · Mathematics 2026-05-13 Axel Bacher

The article is devoted to linear quasigroups and some of their generalizations. In the first part main definitions and notions of the theory of quasigroups are given. In the second part some elementary properties of linear quasigroups and…

Group Theory · Mathematics 2011-03-01 Abdullo Tabarov

A numerical semigroup is an additive subsemigroup of the natural numbers that contains zero and has finite complement. A numerical semigroup is irreducible if it cannot be written as an intersection of numerical semigroups properly…

Commutative Algebra · Mathematics 2026-02-03 Pedro Garcia-Sanchez , Christopher O'Neill

In this article, we first define the concept of ordered intervals, then introduce ordered fuzzy inner product and describe some of its properties.

General Mathematics · Mathematics 2025-12-30 Bayaz Daraby , Asghar Rahimi , Hasan Haddadzadeh

The main aim of this work is to introduce and justify the study of semi-covarities. A {\it semi-covariety} is a non-empty family $\mathcal{F}$ of numerical semigroups such that it is closed under finite intersections, has a minimum,…

Commutative Algebra · Mathematics 2024-08-08 M. A. Moreno-Frías , J. C. Rosales

This book introduces the concept of neutrosophic bilinear algebras and their generalizations to n-linear algebras, n>2. This book has five chapters. The first chapter is introductory in nature and gives a few essential definitions and…

General Mathematics · Mathematics 2010-07-02 W. B. Vasantha Kandasamy , Florentin Smarandache

In this paper we introduce and study semigroups of operators on spaces of fuzzy-number-valued functions, and various applications to fuzzy differential equations are presented. Starting from the space of fuzzy numbers, many new spaces…

Analysis of PDEs · Mathematics 2013-06-18 Ciprian G. Gal , Sorin G. Gal

In this chapter we present transformation semigroups and their applications. We begin with Klein's approach to geometry based on invariants of transformation groups. Then we present symmetry groups in chemistry and in classical mechanics.…

Functional Analysis · Mathematics 2024-02-05 Katarzyna Pichór , Ryszard Rudnicki

In this article, the concept of generalized fuzzy ideals in LA-semigroups. We introduced different types of generalized fuzzy ideals like bi-ideals, interior ideals and quasi ideals in LA-semigroups

Logic · Mathematics 2012-10-25 S. Abdullah , M. Atique Khan , M. Aslam

With the advent of computers, one needs algebraic structures that can simultaneously work with bulk data. One such algebraic structure, namely, n-linear algebras of type I are introduced in this book and its applications to n-Markov chains…

General Mathematics · Mathematics 2008-12-11 W. B. Vasantha Kandasamy , Florentin Smarandache

Most factorization invariants in the literature extract extremal factorization behavior, such as the maximum and minimum factorization lengths. Invariants of intermediate size, such as the mean, median, and mode factorization lengths are…

Commutative Algebra · Mathematics 2021-02-05 Stephan Ramon Garcia , Christopher O'Neill , Samuel Yih

The concept of hypergroup is generalization of group, first was introduced by Marty [9]. This theory had applications to several domains. Marty had applied them to groups, algebraic functions and rational functions. M. Krasner has studied…

Group Theory · Mathematics 2025-01-17 M. Shabir , Nayyar Mehmood , Piergiulio Corsini

The aim of this work is to reduce the complexity of the available algorithms for computing the generator sets of a semigroup ideal by using the Hermite normal form. In order to achieve it we introduce the concept of decomposable semigroup.…

Commutative Algebra · Mathematics 2013-08-09 Juan Ignacio García-García , M. Ángeles Moreno-Frías , Alberto Vigneron-Tenorio

In this paper the concept of the extensions of intuitionistic fuzzy ideals in a semigroup has been extended to a {\Gamma}-Semigroups. Among other results characterization of prime ideals in a {\Gamma}-Semigroups in terms of intuitionistic…

Information Theory · Computer Science 2010-11-13 Nayyar Mehmood , Imran Haider Qureshi

We introduce the notion of semigroup with a tight ideal series and investigate their closures in semitopological semigroups, particularly inverse semigroups with continuous inversion. As a corollary we show that the symmetric inverse…

Group Theory · Mathematics 2009-03-19 Oleg Gutik , Jimmie Lawson , Dušan Repovš

We enumerate the number of isoclinism classes of semi-extraspecial $p$-groups with derived subgroup of order $p^2$. To do this, we enumerate $\text{GL}(2, p)$-orbits of sets of irreducible, monic polynomials in $\mathbb{F}_p[x]$. Along the…

Group Theory · Mathematics 2020-04-22 Mark L. Lewis , Joshua Maglione
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