Results 71 to 80 of about 1,616,014 (220)

Unit group of the ring of negacirculant matrices over finite commutative chain rings

open access: yesSpecial Matrices
Circulant matrices form an important class of matrices that have been continuously studied due to their nice algebraic structures and wide applications. In this study, we focus specifically on negacirculant matrices, which are known as extensions of the ...
Naksing Prarinya, Jitman Somphong
doaj   +1 more source

Global dimension of dg algebras via compact silting objects

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 10, October 2026.
Abstract We introduce a notion of global dimension for a triangulated category relative to a compact silting object. We prove that the finiteness of this dimension is an intrinsic property of the triangulated category itself and, therefore, independent of the choice of the silting object.
Panagiotis Kostas
wiley   +1 more source

Enumeration of finite commutative chain rings [PDF]

open access: yes, 1973
A chain ring is an associative, commutative ring with an identity whose ideals form a chain. We associate with each finite chain ring five invariants (integers) and determine (in certain cases) the number of isomorphism classes of rings with given ...
Liang, Joseph J, Clark, W.Edwin
core   +1 more source

Hybrid Coupling With Operator Inference and the Overlapping Schwarz Alternating Method

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 127, Issue 17, 15 September 2026.
ABSTRACT This paper presents a hybrid approach for coupling subdomain‐local, nonintrusive Operator Inference (OpInf) reduced order models (ROMs) with each other and with subdomain‐local, high‐fidelity full order models (FOMs) using the overlapping Schwarz alternating method (O‐SAM).
Irina Tezaur   +5 more
wiley   +1 more source

Characterization of Group of Invertible Elements of Six Index Zero Completely Primary Finite Rings of Characteristic p

open access: yesWasit Journal for Pure Sciences
The study of finite extension of Galois rings in the recent past have given rise to commutative completely primary finite rings that have attracted much attention as they have yielded important results towards classification of finite rings into well ...
Hezron Were   +3 more
doaj   +1 more source

Symplectic graphs over finite commutative rings

open access: yesEuropean Journal of Combinatorics, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yotsanan Meemark, Thammanoon Puirod
openaire   +3 more sources

Dynamics of linear systems over finite commutative rings [PDF]

open access: yesApplicable Algebra in Engineering, Communication and Computing, 2016
The dynamics of a linear dynamical system over a finite field can be described by using the elementary divisors of the corresponding matrix. It is natural to extend the investigation to a general finite commutative ring. In a previous publication, the last two authors developed an efficient algorithm to determine whether a linear dynamical system over ...
Yangjiang Wei, Guangwu Xu, Yi Ming Zou
openaire   +3 more sources

Entanglement, Space–Time Coordinates, and Bell's Inequalities in Photon–Polarization Experiments

open access: yesAnnalen der Physik, Volume 538, Issue 9, September 2026.
This work presents a revised analysis of Bell‐type inequalities. It is argued that standard derivations of Bell‐type inequalities implicitly rely on additional assumptions beyond those originally stated, specifically concerning the cardinalities of the sets of measurements and photon‐pair properties.
Karl Hess, Jürgen Jakumeit
wiley   +1 more source

A note on zero-divisor graph of amalgamated duplication of a ring along an ideal

open access: yesAKCE International Journal of Graphs and Combinatorics, 2017
Let be a commutative ring and be a non-zero ideal of . Let be the subring of consisting of the elements for and . In this paper we characterize all isomorphism classes of finite commutative rings with identity and ideal such that is planar.
A. Mallika, R. Kala
doaj   +1 more source

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