Results 91 to 100 of about 737,584 (193)

Near Prime Spectrum

open access: yesJournal of Kufa for Mathematics and Computer, 2013
Let  be a commutative ring with identity . It is well known that a topology was defined for  called the Zariski topology (prime spectrum) . In this paper we will generalize this idea for near prime ideal . If  be a commutative near-ring with identity
Hadi J Mustafa   +1 more
doaj   +1 more source

Distinct EEG Features and Sleep/Wake Behaviour Predict Anxiety Phenotypes in Mice

open access: yesJournal of Sleep Research, Volume 35, Issue 5, October 2026.
ABSTRACT Preoperative anxiety is a prevalent clinical problem linked to adverse surgical outcomes, including elevated pain, prolonged hospital stays and increased risk of postoperative delirium. Current assessments rely heavily on subjective measures, necessitating objective biomarkers.
A. Altunkaya   +7 more
wiley   +1 more source

ON SEMISIMPLE LEAVITT PATH ALGEBRAS OVER A COMMUTATIVE UNITAL RING [PDF]

open access: yes, 2017
A finite acyclic graph always contains a sink, a vertex that does not emit edges. Any sink at the graph will generate minimal basic ideal of the Leavitt path algebra over a commutative unital ring. Moreover, the Leavitt path algebra on the finite acyclic
Wardati, Khurul
core   +1 more source

Gibbons–Tsarev Type Systems and Eventual Identities

open access: yesStudies in Applied Mathematics, Volume 157, Issue 4, October 2026.
ABSTRACT We show that non‐diagonalizable reductions of the dKP equation associated with regular non‐semisimple F$F$‐manifolds cannot exist. The proof is based on the derivation and study of a generalized Gibbons–Tsarev system (gGT system) in the non‐semisimple/non‐diagonalizable setting.
Alessandro Arsie   +3 more
wiley   +1 more source

Two elementary commutativity theorems for generalized boolean rings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1997
In this paper we prove that if R is a ring with 1 as an identity element in which xm−xn∈Z(R) for all x∈R and fixed relatively prime positive integers m and n, one of which is even, then R is commutative.
Vishnu Gupta
doaj   +1 more source

The Additive Logic of Epistemic Reasons: An Axiomatic Account

open access: yesTheoria, Volume 92, Issue 5, October 2026.
ABSTRACT The article argues for a system of axioms that is meant to capture the logic of normative reasons for belief. The system concerns a primitive direct‐reason relation, a defined doxastic‐reason relation, and a primitive function for the revision of rational belief by reasons.
Hannes Leitgeb
wiley   +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

S-J-Ideals: A Study in Commutative and Noncommutative Rings

open access: yesJournal of Mathematics
In this paper, we introduce the concept of S-J-ideals in both commutative and noncommutative rings. For a commutative ring R and a multiplicatively closed subset S, we show that many properties of J-ideals apply to S-J-ideals and examine their ...
Alaa Abouhalaka   +2 more
doaj   +1 more source

Matchings: Source, goal, and faithful companion

open access: yesJournal of the London Mathematical Society, Volume 114, Issue 4, October 2026.
Abstract Matchings were among the earliest motivations for graph theory. They subsequently remained a central goal, inspiring the development of new mathematical tools that went well beyond problems directly concerning matchings. These tools proved widely applicable, accompanying the growth of graph theory over the past century.
András Sebő
wiley   +1 more source

An outer measure on a commutative ring

open access: yes, 2016
We show how to produce a reasonable outer measure on a commutative ring from a given measure on a family of prime ideals of this ring.
Dudzik, D., Skrzyński, M.
core  

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