Results 41 to 50 of about 166 (160)

Source of semiprimeness of $\ast$-prime rings

Journal of Amasya University the Institute of Sciences and Technology
This study constructs a structure $S_{R}^{\ast}$ that had never been studied before and obtained new results by defining a subset $S_{R}^{\ast}$ of $R$ as$S_{R}^{\ast}=\left\{ \left.
Barış Albayrak, Didem Yeşil, Didem Karalarlıoğlu Camcı   +2 more
doaj   +1 more source

Dynamically Consistent Analysis of Realized Covariations in Term Structure Models

Mathematical Finance, Volume 36, Issue 1, Page 203-236, January 2026.
ABSTRACT In this article, we show how to analyze the covariation of bond prices nonparametrically and robustly, staying consistent with a general no‐arbitrage setting. This is, in particular, motivated by the problem of identifying the number of statistically relevant factors in the bond market under minimal conditions.
Dennis Schroers
wiley   +1 more source

On Certain Gluing of semigroup rings and indispensable resolution of semigroup rings

, 2023
In this paper, our aim is twofold: First, by using the technique of gluing semigroups, we give infinitely many families of a projective closure with the Cohen-Macaulay (Gorenstein) property. Also, we give an effective technique for constructing large families of one dimensional Gorenstein local rings associated to monomial curves, which supports Rossi ...
Singh, Sanjay Kumar, Srivastava, Pranjal
openaire   +2 more sources

An Approach to Baer Criteria of Injectivity Versus Ideal Injectivity

International Journal of Mathematics and Mathematical Sciences, Volume 2026, Issue 1, 2026.
This paper aims to investigate the Baer‐type criteria for the injectivity of S‐acts. Unlike modules over rings, where the Baer criterion for injectivity is valid, this criterion remains an open problem for acts over semigroups. Every injective S‐act is ideal injective, but the converse does not hold in general.
Hasan Barzegar, Anwar Saleh Alwardi
wiley   +1 more source

On the Betti numbers of some semigroup rings

Le Matematiche, 2012
For any numerical semigroup S, there are infinitely many numerical symmetric semigroups T such that S = T/2 (see below for the definition of T/2) is their half.
Vincenzo Micale, Anda Georgiana Olteanu
doaj  

Units of Integral Semigroup Rings

Journal of Algebra, 1996
The unit group \(U(\mathbb{Z}[S])\) of the integral semigroup ring \(\mathbb{Z}[S]\) of a finite semigroup \(S\), such that the rational semigroup algebra \(\mathbb{Q}[S]\) is semisimple, is studied. It is shown that the set of so called Bass cyclic units and bicyclic units generates a subgroup of finite index in \(U(\mathbb{Z}[S])\) provided that the ...
Jespers, Eric, Wang, D.y.
openaire   +3 more sources

Some Properties of Hyper Ideals in Hyper Hoop‐Algebras

Journal of Applied Mathematics, Volume 2026, Issue 1, 2026.
In this paper, we investigate the structural properties of hyper ideals in hyper hoop‐algebras, a generalization of hoop‐algebras under the framework of hyperstructures. Building upon foundational concepts in hyper group theory and hoop theory, the study introduces definitions for hyper ideals and weak hyper ideals, as well as their absorptive and ...
Teferi Getachew Alemayehu, Wondosen Zemene Norahun, Derso Abeje Engidaw, Gezahagne Mulat Addis, Berhanu Bekele Belayneh, Mohammad Rezwan Habib   +5 more
wiley   +1 more source

Studio di una classe notevole di anelli dotata di inverso generalizzato

Le Matematiche, 2008
We study a remarkable class of rings, which we call corpids, that is the rings, different from zero, (K;+; .); such that (K; .) is an inverse semi-group (or groupid, which is the name given by G. Tallini [4]).
Maria Scafati Tallini, Maurizio Iurlo
doaj  

Lie-Santilli admissible hyper-structures, from numbers to Hv-numbers

Ratio Mathematica
The class of Hv-structures defined on a set is very big and admits a partial order. For this reason, it has a numerous of applications in mathematics and other sciences as physics, biology, linguistics, to mention but a few.
K Hila, Ruggero Santilli, T. Vougiouklis
doaj   +1 more source

Representation of Multilinear Mappings and s‐Functional Inequality

Journal of Mathematics, Volume 2026, Issue 1, 2026.
In the current research, we introduce the multilinear mappings and represent the multilinear mappings as a unified equation. Moreover, by applying the known direct (Hyers) manner, we establish the stability (in the sense of Hyers, Rassias, and Găvruţa) of the multilinear mappings, associated with the single multiadditive functional inequality.
Abasalt Bodaghi, Pramita Mishra
wiley   +1 more source