Results 81 to 90 of about 697 (297)

Common Fixed Points of Commuting Monotone Mappings

open access: yes, 1967
We are concerned here with the existence of fixed or common fixed points of commuting monotone self-mappings of a partially ordered set into itself. Let X be a partially ordered set. A self-mapping ƒ of X into itself is called an isotone mapping if x ⩾ y
James S. W. Wong
core   +1 more source

What Do We Know About Scope 3 Emissions in Small‐ and Medium‐Sized Enterprises? Mapping Current Knowledge and Advancing a Theory–Practice‐Oriented Framework

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Although SMEs comprise over 90% of firms globally, research on their engagement with Scope 3 (value‐chain) greenhouse gas emissions remains limited. This PRISMA‐guided systematic review synthesises 49 SME‐relevant studies to develop a theory‐informed, practice‐oriented framework for more credible and sustained Scope 3 engagement.
Chidinma Uchendu   +5 more
wiley   +1 more source

Invariant Approximations and R-Subweakly Commuting Maps

open access: yes, 2001
The existence of invariant approximations for R-subweakly commuting mappings is proved.
Naseer Shahzad, Shahzad, Naseer
core   +1 more source

A partial envelope approach for modelling multivariate spatial‐temporal data

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract In the new era of big data, modelling multivariate spatial‐temporal data is a challenging task due to both the high dimensionality of the features and complex associations among the responses across different locations and time points.
Reisa Widjaja   +3 more
wiley   +1 more source

Common Fixed Points of Weakly Contractive and Strongly Expansive Mappings in Topological Spaces

open access: yesJournal of Inequalities and Applications, 2010
Using the notion of weakly -contractive mappings, we prove several new common fixed point theorems for commuting as well as noncommuting mappings on a topological space X.
Hussain N, Khan AR, Shah MH
doaj  

Moufang loops with commuting inner mappings

open access: yesJournal of Pure and Applied Algebra, 2009
We investigate the relation between the structure of a Moufang loop and its inner mapping group. Moufang loops of odd order with commuting inner mappings have nilpotency class at most two. $6$-divisible Moufang loops with commuting inner mappings have nilpotency class at most two.
Nagy, Gábor P., Vojtěchovský, Petr
openaire   +2 more sources

On C.N.C. Commuting Contractive Tuples [PDF]

open access: yes, 2005
The characteristic function has been an important tool for studying completely non unitary contractions on Hilbert spaces. In this note, we consider completely non-coisometric contractive tuples of commuting operators on a Hilbert space $\mathcal{H}$. We
Bhattacharyya, T   +5 more
core   +1 more source

Stability of Viscous Three‐Dimensional Stratified Couette Flow via Dispersion and Mixing

open access: yesCommunications on Pure and Applied Mathematics, EarlyView.
ABSTRACT This article explores the stability of stratified Couette flow in the viscous 3d$3d$ Boussinesq equations. In this system, mixing effects arise from the shearing background, and gravity acts as a restoring force leading to dispersive internal gravity waves.
Michele Coti Zelati   +2 more
wiley   +1 more source

k-Commuting maps on triangular algebras

open access: yesLinear Algebra and its Applications, 2012
In this paper, \(k\)-commuting maps on certain triangular algebras are determined. As an application it is shown that every \(k\)-commuting map on an upper triangular matrix algebra over a unital commutative ring of 2-torsion free or a nest algebra is proper.
Du, Yiqiu, Wang, Yu
openaire   +2 more sources

Landscape of Research on Accounting Scope 3 Emissions: A Review of Methodologies and Data

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Scope 3 emissions have been proposed as a critical metric for evaluating corporate carbon footprint, identifying emission sources, and developing mitigation solutions. Yet, widespread corporate reporting of Scope 3 emissions remains limited, highlighting a critical gap in both research and practice.
Zeyu Wang   +3 more
wiley   +1 more source

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