Results 11 to 20 of about 3,542,049 (321)
General Common Fixed Point Theorems and Applications [PDF]
Journal of Applied Mathematics, 2012 The main result is a common fixed point theorem for a pair of multivalued maps on a complete metric space extending a recent result of Đorić and Lazović (2011) for a multivalued map on a metric space satisfying Ćirić-Suzuki-type-generalized contraction.
Shyam Lal Singh +3 more
doaj +4 more sources
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.
Lau, Anthony To-Ming, Wong, Chi Song
openaire +1 more source
On Characterizations of Fixed and Common Fixed Points
Journal of Mathematical Analysis and Applications, 1998 The authors introduce the concept of \(L\)-mapping which is equivalent to the concept of \(C\)-mapping introduced by \textit{S. Zhang} [Proc. Am. Math. Soc. 97, 343-346 (1986; Zbl 0593.54045)] and establish criteria for the existence of fixed points of \(L\)-mappings.
Liu, Zeqing, Xu, Yuguang, Cho, Yeol Je
openaire +2 more sources
Common Fixed Points of Commuting Mappings [PDF]
Proceedings of the American Mathematical Society, 1975 Let X X be a dendroid and S S an abelian semigroup of continuous monotone self-mappings of X X . A point x ϵ X x\epsilon X is fixed under S S if g ( x ) = x g(x) = x for all
Gray, William J., Smith, Carol M.
openaire +2 more sources
On common fixed point theorems [PDF]
Bulletin of the Australian Mathematical Society, 1977 The aim of this paper is to extend a recent result of S.A. Husain and V.M. Sehgal [Bull. Austral. Math. Soc. 13 (1975), 261–267]. The condition that the function should be continuous in Husain and Sehgal, op. cit., is replaced by a semicontinuity condition.
Singh, S. P., Meade, B. A.
openaire +2 more sources
Fixed Point and Common Fixed Point Theorems on Ordered Cone b-Metric Spaces
Abstract and Applied Analysis, 2013 The concept of a cone b-metric space has been introduced recently as a generalization of a b-metric space and a cone metric space in 2011. The aim of this paper is to establish some fixed point and common fixed point theorems on ordered cone b-metric ...
Sahar Mohammad Abusalim +1 more
doaj +1 more source
Fixing Nonconvergence of Algebraic Iterative Reconstruction with an Unmatched Backprojector [PDF]
, 2019 We consider algebraic iterative reconstruction methods with applications in image reconstruction. In particular, we are concerned with methods based on an unmatched projector/backprojector pair; i.e., the backprojector is not the exact adjoint or ...
Dong, Yiqiu +3 more
core +3 more sources
On common fixed points of linear contractions [PDF]
Proceedings of the American Mathematical Society, 1990 In this note we give a short and direct proof of a result about convex semigroups of linear contractions.
openaire +1 more source
Fixed point and common fixed point results in ordered cone metric spaces
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2012 In this paper we establish some fixed point results for functions which satisfy certain weak contractive inequalities in partially ordered cone metric spaces. We have also given some illustrative examples.
Choudhury Binayak S., Metiya N.
doaj +1 more source
Parrondo's dynamic paradox for the stability of non-hyperbolic fixed points [PDF]
, 2017 We show that for periodic non-autonomous discrete dynamical systems, even when a common fixed point for each of the autonomous associated dynamical systems is repeller, this fixed point can became a local attractor for the whole system, giving rise to a ...
Cima, Anna +2 more
core +7 more sources