Results 51 to 60 of about 6,416 (290)

The multi-morphisms and their properties and applications

open access: yesAnnales Universitatis Paedagogicae Cracoviensis: Studia Mathematica, 2015
In this paper a new class of multi-valued mappings (multi-morphisms) is defined as a version of a strongly admissible mapping, and its properties and applications are presented.
Mirosław Ślosarski
doaj   +1 more source

Hybrid fixed point theory for right monotone increasing multi-valued mappings and neutral functional differential inclusions [PDF]

open access: yes, 2007
summary:In this paper, some hybrid fixed point theorems for the right monotone increasing multi-valued mappings in ordered Banach spaces are proved via measure of noncompactness and they are further applied to the neutral functional nonconvex ...
Dhage, B. C.
core  

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

The Split Common Fixed Point Problem for a Family of Multivalued Quasinonexpansive Mappings and Totally Asymptotically Strictly Pseudocontractive Mappings in Banach Spaces

open access: yesMathematics, 2017
In this paper, we introduce an iterative algorithm for solving the split common fixed point problem for a family of multi-valued quasinonexpansive mappings and totally asymptotically strictly pseudocontractive mappings, as well as for a family of totally
Ali Abkar   +2 more
doaj   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Theory and Computation of Fixed Points for Generalized Enriched Multi-Valued Contractions

open access: yesFractal and Fractional
This paper introduces the concepts of inward-β-enriched Reich multi-valued contractions and outward-β-enriched Reich multi-valued contractions in the context of normed linear spaces.
Yahya Almalki   +3 more
doaj   +1 more source

Network divergence analysis identifies adaptive gene modules and two orthogonal vulnerability axes in pancreatic cancer

open access: yesMolecular Oncology, EarlyView.
Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson   +9 more
wiley   +1 more source

Periodic points of multi-valued $\varepsilon $-contractive maps

open access: yesTopological Methods in Nonlinear Analysis, 2003
Let \((X,d)\) be a nonempty metric space and let \((2^X,H_d)\) be the hyperspace of all nonempty compact subsets of \(X\) with the Hausdoff metric. A multivalued map \(F:X\to 2^X\) is said to be \(\varepsilon\)-contractive (\(\varepsilon>0\)) provided that for all \(x,y\in X\) with \(x\not= y\) and \(d(x,y)
openaire   +3 more sources

Operator valued Dirichlet problem in the plane [PDF]

open access: yes, 2012
We consider an operator valued Dirichlet problem for harmonic mappings and prove the existence of a Perron-like solution. To formulate the Perron’s construction we make use of Olson’s notion of spectral order.
Göğüş, Nihat Gökhan
core  

Discontinuous wave equations and a topological degree for some classes of multi-valued mappings [PDF]

open access: yes, 1999
summary:The Leray-Schauder degree is extended to certain multi-valued mappings on separable Hilbert spaces with applications to the existence of weak periodic solutions of discontinuous semilinear wave equations with fixed ...
Fečkan, Michal, Kollár, Richard
core   +1 more source

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