Results 51 to 60 of about 4,047,633 (363)
Reich, Jungck, and Berinde Common Fixed Point Results on ℱ-Metric Spaces and an Application
Mathematics, 2019 Jleli and Samet (2018) introduced a new concept, named an F -metric space, as a generalization of the notion of a metric space. In this paper, we prove certain common fixed point theorems in F -metric spaces.
Z. Mitrović +3 more
semanticscholar +1 more source
Population Ecology, EarlyView.Bear management changes management actions according to the horizontal axis of the population size and the vertical axis of the number of nuisance bears. Aiming for the target population size of Ntar, Actions I and II protect the bears, and Action IV reduces the population.
Hiroyuki Matsuda +5 more
wiley +1 more source
Population Ecology, EarlyView.Population size and dynamics fundamentally shape speciation by influencing genetic drift, founder events, and adaptive potential. Small populations may speciate rapidly due to stronger drift, whereas large populations harbor more genetic diversity, which can alter divergence trajectories. We highlight theoretical models that incorporate population size
Ryo Yamaguchi +3 more
wiley +1 more source
Some common fixed point theorems on partial metric spaces satisfying implicit relation [PDF]
Mathematica Moravica, 2020 The aim of this article is to prove some fixed point and common fixed point theorems on partial metric spaces satisfying implicit relation. Our results extend and generalize several results from the existing literature.
Saluja G.S.
doaj
A Common Fixed Point Theorem Using an Iterative Method [PDF]
Sahand Communications in Mathematical Analysis, 2020 Let $ H$ be a Hilbert space and $C$ be a closed, convex and nonempty subset of $H$. Let $T:C rightarrow H$ be a non-self and non-expansive mapping. V. Colao and G.
Ali Bagheri Vakilabad
doaj +1 more source
Common fixed points for family of mappings
International Journal of Mathematics and Mathematical Sciences, 1983 The main aim of the present paper is to prove the existence of common fixed points for mappings which are not necessarily continuous. Our results, which are primarly motivated by investigation of Husain and Sehgal (Bull. Austral. Math. Soc. 13 (1975), 261‐267), generalize the results of Husain and Sehgal, Sehgal, Kannan, Reich, Hardy and Rogers, and ...
J.H.M. Whitfield +2 more
openaire +3 more sources
Common Fixed Points for Multimaps in Metric Spaces [PDF]
Fixed Point Theory and Applications, 2009 AbstractWe discuss the existence of common fixed points in uniformly convex metric spaces for single-valued pointwise asymptotically nonexpansive or nonexpansive mappings and multivalued nonexpansive, "Equation missing"-nonexpansive, or "Equation missing"-semicontinuous maps under different conditions of commutativity.
Espínola García, Rafael +1 more
openaire +4 more sources
Evolutionary interplay between viruses and R‐loops
FEBS Letters, EarlyView.Viruses interact with specialized nucleic acid structures called R‐loops to influence host transcription, epigenetic states, latency, and immune evasion. This Perspective examines the roles of R‐loops in viral replication, integration, and silencing, and how viruses co‐opt or avoid these structures.
Zsolt Karányi +4 more
wiley +1 more source
On a fixed point theorem of Greguš
International Journal of Mathematics and Mathematical Sciences, 1986 We consider two selfmaps T and I of a closed convex subset C of a Banach space X which are weakly commuting in X, i.e.‖TIx−ITx‖≤‖Ix−Tx‖ for any x in X,and satisfy the inequality‖Tx−Ty‖≤a‖Ix−Iy‖+(1−a)max{‖Tx−Ix‖,‖Ty−Iy‖}for all x, y in C, where ...
Brian Fisher, Salvatore Sessa
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Common α-Fuzzy Fixed Point Results for F-Contractions with Applications
Mathematics, 2021 F-contractions have inspired a branch of metric fixed point theory committed to the generalization of the classical Banach contraction principle. The study of these contractions and α-fuzzy mappings in b-metric spaces was attempted timidly and was not ...
Jamshaid Ahmad +2 more
doaj +1 more source