Results 51 to 60 of about 411 (262)

Addressing racialised awarding gap in higher education: Insights from personal tutors

open access: yesBritish Educational Research Journal, EarlyView.
Abstract Situated within a wider cross‐institutional research project, this article provides an in‐depth case study of one higher education (HE) institution, focusing on how personal tutors make sense of racialised degree awarding disparities for both undergraduate and postgraduate students, how they perceive their responsibilities, the challenges and ...
Benjamin Ajibade   +3 more
wiley   +1 more source

Common fixed point theorem for hybrid pairs of r-weakly commuting mappings [PDF]

open access: yesSurveys in Mathematics and its Applications, 2010
In this paper we established a common fixed point theorem for four mappings f,g (crisp) and S,T (fuzzy) of R-weakly commuting mapping in a metric space.
Peer Mohammad   +2 more
doaj  

A New Common Fixed Point Theorem for Three Commuting Mappings

open access: yesAxioms, 2020
In the present paper, we propose a common fixed point theorem for three commuting mappings via a new contractive condition which generalizes fixed point theorems of Darbo, Hajji and Aghajani et al.
Meryeme El Harrak, Ahmed Hajji
doaj   +1 more source

Flight of the dragons: a global review of migration in Odonata

open access: yesBiological Reviews, EarlyView.
ABSTRACT Insects are the most abundant and ecologically important animal migrants. Yet, we know relatively little about the patterns and processes underlying insect migration. Dragonflies (Anisoptera) and damselflies (Zygoptera) comprise the ancient insect order Odonata, whose ancestors were the first organisms to fly on Earth.
Johanna S.U. Hedlund   +3 more
wiley   +1 more source

On common fixed points of weakly commuting mappings and set-valued mappings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1986
Our main theorem establishes the uniqueness of the common fixed point of two set-valued mappings and of two single-valued mappings defined on a complete metric space, under a contractive condition and a weak commutativity concept.
S. Sessa, B. Fisher
doaj   +1 more source

Canonical commutation relation preserving maps [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2001
We study maps preserving the Heisenberg commutation relation $ab - ba=1$. We find a one-parameter deformation of the standard realization of the above algebra in terms of a coordinate and its dual derivative. It involves a non-local ``coordinate'' operator while the dual ``derivative'' is just the Jackson finite-difference operator.
Chryssomalakos, C., Turbiner, A.
openaire   +3 more sources

Carrion ecology: concepts, interdisciplinary synthesis, and perspectives

open access: yesBiological Reviews, EarlyView.
ABSTRACT Carrion is a ubiquitous resource in both terrestrial and aquatic ecosystems, yet it has long been overlooked in ecological research. Over the past two decades, studies on carrion and the many organisms that exploit it have flourished, revealing not only wide‐ranging ecological functions but also significance far beyond ecology.
Marcos Moleón   +38 more
wiley   +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

Some common fixed point theorems in generalized modular metric spaces with applications

open access: yesScientific African
In this paper, we extend the notion of weakly commuting mappings results in modular metric spaces to setting of modular ωG-metric spaces and prove the existence of unique common fixed point of three pairs of weakly commuting self-maps in modular ωG ...
Godwin Amechi Okeke, Daniel Francis
doaj   +1 more source

Examples of *-commuting maps

open access: yes, 2011
We introduce the concept of a 1-coaligned $k$-graph and prove that the shift maps of a $k$-graph pairwise *-commute if and only if the $k$-graph is 1-coaligned. We then prove that for 2-graphs $Λ$ generated from basic data *-commuting shift maps is equivalent to a condition that implies that $C^*(Λ)$ is simple and purely infinite. We then consider full
Maloney, Ben, Willis, Paulette N.
openaire   +2 more sources

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