Results 11 to 20 of about 14,205 (282)
Diametrically Contractive Multivalued Mappings [PDF]
Fixed Point Theory and Applications, 2007 AbstractDiametrically contractive mappings on a complete metric space are introduced by V. I. Istratescu. We extend and generalize this idea to multivalued mappings. An easy example shows that our fixed point theorem is more applicable than a former one obtained by H. K. Xu.
S. Dhompongsa, H. Yingtaweesittikul
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Proceedings of the American Mathematical Society, 1973 The Cauchy condition for convergence of a contractive iteration in a complete metric space is replaced by an equivalent functional condition. Many generalizations of the Banach-Neumann contractive mapping principle follow.
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Interval-valued contractive fuzzy negations [PDF]
, 2010 In this work we consider the concept of contractive interval-valued fuzzy negation, as a negation such that it does not increase the length or amplitude of an interval. We relate this to the concept of Lipschitz function. In particular, we prove that the
Bedregal, Benjamin +4 more
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Mathematics, 2018 In this paper, we introduce the concepts of an α -admissible nonself-mapping, an α -F-contractive nonself-mapping, a weak α -F-contractive nonself-mapping, and a generalized α -F-contractive nonself-mapping and ...
Yeol Je Cho +2 more
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On $g$-functions for subshifts [PDF]
, 2006 A necessary and sufficient condition is given for a subshift presentation to have a continuous $g$-function. An invariant necessary and sufficient condition is formulated for a subshift to posses a presentation that has a continuous $g$-function.Comment:
Krieger, Wolfgang
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New PPF Dependent Fixed Point Theorems for Suzuki Type GF-Contractions
Journal of Function Spaces, 2015 We introduce new concepts of an αc-GF-contractive nonself-mapping, a weak αc-GF-contractive nonself-mapping, a generalized αc-GF-contractive nonself-mapping, and Suzuki type GF-contractions and establish the existence of PPF dependent fixed point ...
M. A. Kutbi +2 more
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Common Fixed Point in Cone Metric Space for $mathbf{s}-mathbf{varphi}$-contractive [PDF]
Sahand Communications in Mathematical Analysis, 2019 Huang and Zhang cite{Huang} have introduced the concept of cone metric space where the set of real numbers is replaced by an ordered Banach space. Shojaei cite{shojaei} has obtained points of coincidence and common fixed points for s-Contraction mappings
Hamid Shojaei +2 more
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On (α,φ)-weak Pata contractions
MANAS: Journal of Engineering, 2022 In this paper, we give (α,φ)-weak Pata contractive mapping by using the simulation function and multivalued (α,φ)-weak Pata contractions and establish some fixed point results for such contractions.
Murat Özdemir, Merve Aktay
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Optical mapping of contracting hearts [PDF]
The Journal of Physiology, 2023 AbstractOptical mapping is a widely used tool to record and visualize the electrophysiological properties in a variety of myocardial preparations such as Langendorff‐perfused isolated hearts, coronary‐perfused wedge preparations, and cell culture monolayers.
Vineesh Kappadan +8 more
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Fixed point theorem by using ψ–contraction and (ϕ,φ)–contraction in probabilistic 2–metric spaces
Alexandria Engineering Journal, 2020 This research paper investigates and proves some theorems of the fixed point for self–mapping [T:X→X] under (ϕ,ψ)–contractive mappings and (ϕ,φ)–contractive mappings in Menger probabilistic 2–metric space.
H.M. Abu-Donia +2 more
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