Results 91 to 100 of about 591,069 (266)

Extended Fuzzy Metrics and Fixed Point Theorems

open access: yesMathematics, 2019
In this paper, we study those fuzzy metrics M on X, in the George and Veeramani’s sense, such that ⋀ t > 0 M ( x , y , t ) > 0 . The continuous extension M 0 of M to X 2 × 0 , + ∞ is called extended
Valentín Gregori   +2 more
doaj   +1 more source

Fixed Point Theorems for Asymptotically Contractive Multimappings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2012
We present fixed point theorems for a nonexpansive set-valued mapping from a closed convex subset of a reflexive Banach space into itself under some asymptotic contraction assumptions.
M. Djedidi, K. Nachi
doaj   +1 more source

Some Fixed Point Theorems in G-metric Spaces

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2012
We prove some fixed point theorems for self mappings satisfying some kind of contractive type conditions on complete G-metric ...
Mohanta Sushanta Kumar
doaj   +1 more source

A Noncontractive Fixed Point Theorem [PDF]

open access: yesProceedings of the American Mathematical Society, 1970
The sequence Txn so constructed contains a subsequence TXnk which converges to some x X and which, by Ascoli's theorem [3], is equicontinuous. It follows in turn from (1) that the sequence Xnk is equicontinuous. To complete the proof it suffices to show xn,(t)-x(t) in B.
openaire   +1 more source

Common fixed point theorems of contractive-type mappings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2004
Using the concept of D-metric we prove some common fixed point theorems for generalized contractive mappings on a complete D-metric space. Our results extend, improve, and unify results of Fisher and Ćirić.
Hee Soo Park, Jeong Sheok Ume
doaj   +1 more source

A fixed point theorem [PDF]

open access: yesProceedings of the American Mathematical Society, 1957
O'Neill, B., Straus, E. G.
openaire   +1 more source

Some Remarks on G-Metric Spaces and Fixed Point Theorems

open access: yesInternational Journal of Analysis and Applications, 2014
We notice some remarks on G-metric spaces and the fixed point results of contractive mappings defined on such spaces. Our results generalize, extend and complement recent fixed point theorems established by  Jleli and Samet [M. Jleli and B.
Vesna Cojbasic Rajic
doaj   +2 more sources

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