Results 1 to 10 of about 2,098,386 (150)
Results on common fixed points [PDF]
International Journal of Mathematics and Mathematical Sciences, 2001 We establish common fixed point theorems related with families of self mappings on metric spaces. Our results extend, improve, and unify the results due to Fisher (1977, 1978, 1979, 1981, 1984), Jungck (1988), and Ohta and Nikaido (1994).
Zeqing Liu, Jeong Sheok Ume
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Common Fixed Points for Multimaps in Metric Spaces [PDF]
Fixed Point Theory and Applications, 2010 We discuss the existence of common fixed points in uniformly convex metric spaces for single-valued pointwise asymptotically nonexpansive or nonexpansive mappings and multivalued nonexpansive, -nonexpansive, or -semicontinuous maps under different ...
Hussain Nawab, Espínola Rafa
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Fixed points, selections and common fixed points for nonexpansive-type mappings [PDF]
Journal of Mathematical Analysis and Applications, 2011 We study the existence of fixed points in the context of uniformly convex geodesic metric spaces, hyperconvex spaces and Banach spaces for single and multivalued mappings satisfying conditions that generalize the concept of nonexpansivity.
Adriana Nicolae +27 more
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Common Fixed Points for Semigroups of Mappings [PDF]
Proceedings of the American Mathematical Society, 1973 Let X be a compact convex subset of a strictly convex Banach space. Let S be a Hausdorff topological semigroup which is either left amenable or left reversible. Then for any generalised nonexpansive (jointly) continuous action of S on X, X contains a common fixed point of S.
Anthony Lau, Chi Song Wong
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Common fixed points of set-valued mappings [PDF]
International Journal of Mathematics and Mathematical Sciences, 2001 The main purpose of this paper is to obtain a common fixed point for a pair of set-valued mappings of Greguš type condition. Our theorem extend Diviccaro et al. (1987), Guay et al. (1982), and Negoescu (1989).
M. R. Singh, L. S. Singh, P. P. Murthy
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Compatible mappings and common fixed points (2) [PDF]
International Journal of Mathematics and Mathematical Sciences, 1988 A common fixed point theorem of S.L. and S.P. Singh is generalized by weakening commutativity hypotheses and by increasing the number of functions involved.
Gerald Jungck
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Structure of the fixed point set and common fixed points of asymptotically nonexpansive mappings [PDF]
, 2001 Let X be a Banach space, C a weakly compact convex subset of X and T : C → C an asymptotically nonexpansive mapping. Under the usual assumptions on X which assure the existence of fixed point for T, we prove that the set of fixed points is a ...
Domínguez Benavides, Tomás +1 more
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Common fixed points of compatible mappings [PDF]
International Journal of Mathematics and Mathematical Sciences, 1990 In this paper, we present a common fixed point theorem for compatible mappings, which extends the results of Ding, Diviccaro-Sessa and the third author.
S. M. Kang, Y. J. Cho, G. Jungck
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Common random fixed points of compatible random operators [PDF]
International Journal of Mathematics and Mathematical Sciences, 2006 We construct a random iteration scheme and study necessary conditions for its convergence to a common random fixed point of two pairs of compatible random operators satisfying Meir-Keeler type conditions in Polish spaces. Some random fixed point theorems
Ismat Beg, Mujahid Abbas
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Common Fixed Points in Modular Spaces
Ibn Al-Haitham Journal for Pure and Applied Sciences, 2018 In this paper,there are new considerations about the dual of a modular spaces and weak convergence. Two common fixed point theorems for a -non-expansive mapping defined on a star-shaped weakly compact subset are proved, Here the conditions of ...
Salwa Salman Abed +1 more
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