﻿<?xml version="1.0" encoding="utf-8"?><rss version="2.0"><channel><title>Fixed Point Theory and Applications</title><link>http://www.hindawi.com</link><description>The latest articles from Hindawi Publishing Corporation</description><copyright>&amp;#169; 2009, Hindawi Publishing Corporation. All rights reserved.</copyright><item><title>Strong Convergence of a New Iteration for a Finite Family of Accretive Operators</title><link>http://www.hindawi.com/journals/fpta/2009/491583.html</link><description>The viscosity approximation methods are employed to establish strong convergence of the modified Mann iteration scheme to a common zero of a finite family of accretive operators on a strictly convex Banach space with uniformly
G&amp;#226;teaux differentiable norm. Our work improves and extends various results existing in the current literature.</description><Author>Liang-Gen Hu and Jin-Ping Wang</Author><copyright>&amp;#169; 2009, Hindawi Publishing Corporation. All rights reserved.</copyright></item><item><title>Approximate Fixed Point Theorems for the Class of Almost S-KKM&amp;#x1D49E; Mappings in Abstract Convex Uniform Spaces</title><link>http://www.hindawi.com/journals/fpta/2009/791514.html</link><description>We use a concept of abstract convexity to define the almost
S-KKM&amp;#x1D49E; property, al-S-KKM&amp;#x1D49E;(X,Y) family, and almost &amp;#x03A6;-spaces. We get some new approximate fixed point theorems and fixed point theorems in almost &amp;#x03A6;-spaces. Our results extend some results of other authors.</description><Author>Tong-Huei Chang, Chi-Ming Chen, and Yueh-Hung Huang</Author><copyright>&amp;#169; 2009, Hindawi Publishing Corporation. All rights reserved.</copyright></item><item><title>Fixed Point Theorems for Contractive Mappings in Complete G-Metric Spaces</title><link>http://www.hindawi.com/journals/fpta/2009/917175.html</link><description>We prove some fixed point results for mappings satisfying various contractive conditions on Complete G-metric Spaces. Also the Uniqueness of such fixed point are proved, as well as we showed these mappings are G-continuous on such fixed points.</description><Author>Zead Mustafa and Brailey Sims</Author><copyright>&amp;#169; 2009, Hindawi Publishing Corporation. All rights reserved.</copyright></item><item><title>Convergence Theorems of Three-Step Iterative Scheme for a Finite Family of Uniformly Quasi-Lipschitzian Mappings in Convex Metric Spaces</title><link>http://www.hindawi.com/journals/fpta/2009/891965.html</link><description>We consider a new Noor-type iterative procedure with errors for approximating the common fixed point of a finite family of uniformly quasi-Lipschitzian mappings in convex metric spaces. Under appropriate conditions, some convergence theorems are proved for such iterative sequences involving a finite family of uniformly quasi-Lipschitzian mappings. The results presented in this paper extend, improve and unify some main results in previous work.</description><Author>Tian You-xian and Yang Chun-de</Author><copyright>&amp;#169; 2009, Hindawi Publishing Corporation. All rights reserved.</copyright></item><item><title>Convergence Comparison of Several Iteration Algorithms for the Common Fixed Point Problems</title><link>http://www.hindawi.com/journals/fpta/2009/824374.html</link><description>We discuss the following viscosity approximations
with the weak contraction A for a non-expansive mapping sequence {Tn}, yn=&amp;#x03B1;nAyn+(1&amp;#x2212;&amp;#x03B1;n)Tnyn, xn+1=&amp;#x03B1;nAxn+(1&amp;#x2212;&amp;#x03B1;n)Tnxn. We prove that Browder&amp;#39;s and Halpern&amp;#39;s type convergence theorems imply
Moudafi&amp;#39;s viscosity approximations with the weak contraction, and give the estimate of convergence rate between Halpern&amp;#39;s type iteration and Mouda&amp;#39;s viscosity approximations with the weak contraction.</description><Author>Yisheng Song and Xiao Liu</Author><copyright>&amp;#169; 2009, Hindawi Publishing Corporation. All rights reserved.</copyright></item><item><title>A Generalization of Kannan&amp;#39;s Fixed Point Theorem</title><link>http://www.hindawi.com/journals/fpta/2009/192872.html</link><description>In order to observe the condition of Kannan mappings,
we prove a generalization of Kannan&amp;#39;s fixed point theorem.
Our theorem involves constants and
we obtain the best constants to ensure a fixed point.</description><Author>Yusuke Enjouji, Masato Nakanishi, and Tomonari Suzuki</Author><copyright>&amp;#169; 2009, Hindawi Publishing Corporation. All rights reserved.</copyright></item><item><title>Common Fixed Point and Approximation Results for Noncommuting Maps on Locally Convex Spaces</title><link>http://www.hindawi.com/journals/fpta/2009/207503.html</link><description>Common fixed point results for some new classes of nonlinear noncommuting maps on a locally convex space are proved. As applications, related invariant approximation results are obtained. Our work includes improvements and extension of several recent
developments of the existing literature on common fixed points. We also provide
illustrative examples to demonstrate the generality of our results over the known ones.</description><Author>F. Akbar and A. R. Khan</Author><copyright>&amp;#169; 2009, Hindawi Publishing Corporation. All rights reserved.</copyright></item><item><title>Common Fixed Point Theorems in Menger Probabilistic Quasimetric Spaces</title><link>http://www.hindawi.com/journals/fpta/2009/546273.html</link><description>We consider complete Menger probabilistic quasimetric
space and prove common fixed point theorems for weakly compatible
maps in this space.</description><Author>Shaban Sedghi, Tatjana &amp;#381;iki&amp;#263;-Do&amp;#353;enovi&amp;#263;, and Nabi Shobe</Author><copyright>&amp;#169; 2009, Hindawi Publishing Corporation. All rights reserved.</copyright></item><item><title>On Some Generalized Ky Fan Minimax Inequalities</title><link>http://www.hindawi.com/journals/fpta/2009/194671.html</link><description>Some generalized Ky Fan minimax inequalities for vector-valued mappings are established by applying the classical Browder fixed point theorem and the Kakutani-Fan-Glicksberg fixed point theorem.</description><Author>Xianqiang Luo</Author><copyright>&amp;#169; 2009, Hindawi Publishing Corporation. All rights reserved.</copyright></item><item><title>The Solvability of a New System of Nonlinear Variational-Like Inclusions</title><link>http://www.hindawi.com/journals/fpta/2009/609353.html</link><description>We introduce and study a new system of
nonlinear variational-like inclusions involving
s-(G,&amp;#x03B7;)-maximal monotone operators, strongly monotone
operators, &amp;#x03B7;-strongly monotone operators, relaxed monotone
operators, cocoercive operators, (&amp;#x03BB;,&amp;#x03BE;)-relaxed
cocoercive operators, (&amp;#x03B6;,&amp;#x03C6;,&amp;#x03F1;)-g-relaxed
cocoercive operators and relaxed Lipschitz operators in Hilbert
spaces. By using the resolvent operator technique associated with
s-(G,&amp;#x03B7;)-maximal monotone operators and Banach contraction
principle, we demonstrate the existence and uniqueness of solution
for the system of nonlinear variational-like inclusions. The
results presented in the paper improve and extend some known
results in the literature.</description><Author>Zeqing Liu, Min Liu, Jeong Sheok Ume, and Shin Min Kang</Author><copyright>&amp;#169; 2009, Hindawi Publishing Corporation. All rights reserved.</copyright></item><item><title>Strong Convergence of an Iterative Method for Equilibrium Problems and Variational Inequality Problems</title><link>http://www.hindawi.com/journals/fpta/2009/362191.html</link><description>We introduce an iterative method for finding a common element of the set of solutions of equilibrium problems, the set of
solutions of variational inequality problems, and the set of fixed points of
finite many nonexpansive mappings. We prove strong convergence of the iterative sequence generated by the proposed iterative algorithm to the unique
solution of a variational inequality, which is the optimality condition for the
minimization problem.</description><Author>HongYu Li and HongZhi Li</Author><copyright>&amp;#169; 2009, Hindawi Publishing Corporation. All rights reserved.</copyright></item><item><title>Fixed Points of Multivalued Maps in Modular Function Spaces</title><link>http://www.hindawi.com/journals/fpta/2009/786357.html</link><description>The purpose of this paper is to study the existence of fixed points for contractive-type
and nonexpansive-type multivalued maps in the setting of modular function
spaces. We also discuss the concept of w-modular function and prove fixed point results for weakly-modular contractive maps in modular function spaces. These
results extend several similar results proved in metric and Banach spaces settings.</description><Author>Marwan A. Kutbi and Abdul Latif</Author><copyright>&amp;#169; 2009, Hindawi Publishing Corporation. All rights reserved.</copyright></item><item><title>A Hybrid Iterative Scheme for Equilibrium Problems, Variational Inequality Problems, and Fixed Point Problems in Banach Spaces</title><link>http://www.hindawi.com/journals/fpta/2009/719360.html</link><description>The purpose of this paper is to introduce a new hybrid projection algorithm for finding a common element of the set of solutions of the equilibrium problem
and the set of the variational inequality for an inverse-strongly monotone
operator and the set of fixed points of relatively quasi-nonexpansive mappings
in a Banach space. Then we show a strong convergence theorem. Using this
result, we obtain some applications in a Banach space.</description><Author>Prasit Cholamjiak</Author><copyright>&amp;#169; 2009, Hindawi Publishing Corporation. All rights reserved.</copyright></item><item><title>A New Extension Theorem for Concave Operators</title><link>http://www.hindawi.com/journals/fpta/2009/571546.html</link><description>We present a new and interesting extension theorem for concave operators as follows. Let X be a real linear space, and let (Y,K) be a real order complete PL space. Let the set A&amp;#x2282;X&amp;#x00D7;Y be convex. Let X0 be a real linear proper subspace of X, with &amp;#x03B8;&amp;#x2208;(AX&amp;#x2212;X0)ri, where AX={x&amp;#x02223;(x,y)&amp;#x2208;A for some y&amp;#x2208;Y}. Let g0:X0&amp;#x2192;Y be a concave operator such that g0(x)&amp;#x2264;z whenever (x,z)&amp;#x2208;A and x&amp;#x2208;X0. Then there exists a concave operator g:X&amp;#x2192;Y such that (i) g is an extension of g0, that is, g(x)=g0(x) for all x&amp;#x2208;X0, and (ii) g(x)&amp;#x2264;z whenever (x,z)&amp;#x2208;A.</description><Author>Jian-wen Peng, Wei-dong Rong, and Jen-Chih Yao</Author><copyright>&amp;#169; 2009, Hindawi Publishing Corporation. All rights reserved.</copyright></item><item><title>Common Fixed Point Theorems for Weakly Compatible Pairs on Cone Metric Spaces</title><link>http://www.hindawi.com/journals/fpta/2009/643840.html</link><description>We prove several fixed point theorems on cone metric spaces in which
the cone does not need to be normal. These theorems generalize the recent
results of Huang and Zhang (2007), Abbas and Jungck (2008), and Vetro
(2007). Furthermore as corollaries, we obtain recent results of Rezapour and
Hamlborani (2008).</description><Author>G. Jungck, S. Radenovi&amp;#263;, S. Radojevi&amp;#263;, and V. Rako&amp;#269;evi&amp;#263;</Author><copyright>&amp;#169; 2009, Hindawi Publishing Corporation. All rights reserved.</copyright></item><item><title>Some Common Fixed Point Results in Cone Metric Spaces</title><link>http://www.hindawi.com/journals/fpta/2009/493965.html</link><description>We prove a result on points of coincidence and common fixed points
for three self-mappings satisfying generalized contractive type conditions in cone
metric spaces. We deduce some results on common fixed points for two self-mappings
satisfying contractive type conditions in cone metric spaces. These results generalize
some well-known recent results.</description><Author>Muhammad Arshad, Akbar Azam, and Pasquale Vetro</Author><copyright>&amp;#169; 2009, Hindawi Publishing Corporation. All rights reserved.</copyright></item><item><title>Fixed Points and Stability of the Cauchy Functional Equation in C&amp;#x2217;-Algebras</title><link>http://www.hindawi.com/journals/fpta/2009/809232.html</link><description>Using the fixed point method, we prove the generalized Hyers-Ulam
stability of homomorphisms in C&amp;#x2217;-algebras and Lie C&amp;#x2217;-algebras and of derivations
on C&amp;#x2217;-algebras and Lie C&amp;#x2217;-algebras for the Cauchy functional equation.</description><Author>Choonkil Park</Author><copyright>&amp;#169; 2009, Hindawi Publishing Corporation. All rights reserved.</copyright></item><item><title>On Series-Like Iterative Equation with a General Boundary Restriction</title><link>http://www.hindawi.com/journals/fpta/2009/892691.html</link><description>By means of Schauder fixed point theorem and Banach contraction
principle, we investigate the existence and uniqueness of Lipschitz solutions
of the equation
&amp;#x1D4AB;(f)&amp;#x2218;f=F. Moreover, we get that the solution f depends continuously
on F. As a corollary, we investigate the existence and uniqueness of Lipschitz
solutions of the series-like iterative equation
&amp;#x2211;n=1&amp;#x221E;anfn(x)=F(x),&amp;#x02009;&amp;#x02009;x&amp;#x2208;&amp;#x1D539;
with a general boundary restriction, where F:&amp;#x1D539;&amp;#x2192;&amp;#x1D538; is a given Lipschitz function,
and &amp;#x1D539;,&amp;#x1D538; are compact convex subsets of &amp;#x211D;N with nonempty interior.</description><Author>Wei Song, Guo-qiu Yang, and Feng-chun Lei</Author><copyright>&amp;#169; 2009, Hindawi Publishing Corporation. All rights reserved.</copyright></item><item><title>Strong Convergence Theorems for Countable Lipschitzian Mappings and Its Applications in Equilibrium and Optimization Problems</title><link>http://www.hindawi.com/journals/fpta/2009/462489.html</link><description>The purpose of this paper is to propose a modified hybrid method in mathematical programming and to obtain some strong convergence theorems for common fixed points of a countable family of Lipschitzian mappings. Further, we apply our results to solve the equilibrium and optimization problems. The results of this paper improved and extended the results of  W. Nilsrakoo and S. Saejung (2008) and some others in some respects.</description><Author>Liping Yang and Yongfu Su</Author><copyright>&amp;#169; 2009, Hindawi Publishing Corporation. All rights reserved.</copyright></item><item><title>Global Attractivity Results for Mixed-Monotone Mappings in Partially Ordered Complete Metric Spaces</title><link>http://www.hindawi.com/journals/fpta/2009/762478.html</link><description>We prove fixed point theorems for mixed-monotone mappings in
partially ordered complete metric spaces which satisfy a weaker
contraction condition than the classical Banach contraction condition for all points that are related by given
ordering. We also give a global attractivity result for all solutions of the
difference equation
zn+1=F(zn,zn&amp;#x2212;1), n=2,3,&amp;#x2026;,
where F satisfies mixed-monotone conditions with respect to the given ordering.</description><Author>D&amp;#382;. Burgi&amp;#263;, S. Kalabu&amp;#353;i&amp;#263;, and M. R. S. Kulenovi&amp;#263;</Author><copyright>&amp;#169; 2009, Hindawi Publishing Corporation. All rights reserved.</copyright></item><item><title>Generalized Caristi&amp;#39;s Fixed Point Theorems</title><link>http://www.hindawi.com/journals/fpta/2009/170140.html</link><description>We present generalized versions of Caristi&amp;#39;s fixed
point theorem for multivalued maps. Our results either improve or generalize the corresponding generalized Caristi&amp;#39;s fixed point theorems due to Bae (2003), Suzuki (2005), Khamsi (2008), and others.</description><Author>Abdul Latif</Author><copyright>&amp;#169; 2009, Hindawi Publishing Corporation. All rights reserved.</copyright></item><item><title>Construction of Fixed Points by Some Iterative Schemes</title><link>http://www.hindawi.com/journals/fpta/2009/612491.html</link><description>We obtain strong convergence theorems of two modifications of Mann
iteration processes with errors in the doubly sequence setting. Furthermore, we establish some weakly
convergence theorems for doubly sequence Mann&amp;#39;s iteration scheme with errors in a uniformly convex Banach space by a Frech&amp;#233;t differentiable norm.</description><Author>A. El-Sayed Ahmed and A. Kamal</Author><copyright>&amp;#169; 2009, Hindawi Publishing Corporation. All rights reserved.</copyright></item><item><title>A General Iterative Method for Solving the Variational Inequality Problem and Fixed Point Problem of an Infinite Family of Nonexpansive Mappings in Hilbert Spaces</title><link>http://www.hindawi.com/journals/fpta/2009/369215.html</link><description>We introduce an iterative scheme for finding a common element of the set of common fixed
points of a family of infinitely nonexpansive mappings, and the set of solutions of the variational inequality for an
inverse-strongly monotone mapping in a Hilbert space. Under suitable conditions, some strong convergence theorems
for approximating a common element of the above two sets are obtained. As applications, at the end of the paper we
utilize our results to study the problem of finding a common element of the set of fixed points of a family of infinitely
nonexpansive mappings and the set of fixed points of a finite family of k-strictly pseudocontractive mappings. The
results presented in the paper improve some recent results of Qin and Cho (2008).</description><Author>Rabian Wangkeeree and Uthai Kamraksa</Author><copyright>&amp;#169; 2009, Hindawi Publishing Corporation. All rights reserved.</copyright></item><item><title>Some Common Fixed Point Theorems for Weakly Compatible Mappings in Metric Spaces</title><link>http://www.hindawi.com/journals/fpta/2009/804734.html</link><description>We establish a common fixed point theorem for weakly compatible mappings generalizing a result of Khan and Kubiaczyk (1988). Also, an example is given to support our generalization. We also prove common fixed point theorems for weakly compatible mappings in metric and compact metric spaces.</description><Author>M. A. Ahmed</Author><copyright>&amp;#169; 2009, Hindawi Publishing Corporation. All rights reserved.</copyright></item><item><title>Fixed Points of Maps of a Nonaspherical Wedge</title><link>http://www.hindawi.com/journals/fpta/2009/531037.html</link><description>Let X be a finite polyhedron that has the homotopy type of the wedge
of the projective plane and the circle. With the aid of techniques from combinatorial group theory, we obtain formulas for the Nielsen numbers of the selfmaps of X.</description><Author>Seung Won Kim, Robert F. Brown, Adam Ericksen, Nirattaya Khamsemanan, and Keith Merrill</Author><copyright>&amp;#169; 2009, Hindawi Publishing Corporation. All rights reserved.</copyright></item><item><title>An Iterative Algorithm Combining Viscosity Method with Parallel Method for a Generalized Equilibrium Problem and Strict Pseudocontractions</title><link>http://www.hindawi.com/journals/fpta/2009/794178.html</link><description>We introduce a new approximation scheme combining the viscosity method with parallel
method for finding a common element of the set of solutions of a generalized equilibrium
problem and the set of fixed points of a family of finitely strict pseudocontractions. We
obtain a strong convergence theorem for the sequences generated by these processes in Hilbert
spaces. Based on this result, we also get some new and interesting results. The results in
this paper extend and improve some well-known results in the literature.</description><Author>Jian-Wen Peng, Yeong-Cheng Liou, and Jen-Chih Yao</Author><copyright>&amp;#169; 2009, Hindawi Publishing Corporation. All rights reserved.</copyright></item><item><title>Hybrid Iterative Methods for Convex Feasibility Problems and Fixed Point Problems of Relatively Nonexpansive Mappings in Banach Spaces</title><link>http://www.hindawi.com/journals/fpta/2008/583082.html</link><description>The convex feasibility problem (CFP) of finding a point in the nonempty intersection
&amp;#x022C2;i=1NCi is considered, where N&amp;#x2A7E;1 is an 
  integer and the Ci&amp;#39;s are assumed to be convex closed subsets of a Banach space E. By using hybrid iterative methods, we prove theorems on the strong convergence 
  to a common fixed point for a finite family of relatively nonexpansive mappings. Then, we apply our results for solving
convex feasibility problems in Banach spaces.</description><Author>Somyot Plubtieng and Kasamsuk Ungchittrakool</Author><copyright>&amp;#169; 2009, Hindawi Publishing Corporation. All rights reserved.</copyright></item><item><title>Fixed Points of Generalized Contractive Maps</title><link>http://www.hindawi.com/journals/fpta/2009/487161.html</link><description>We prove some results on the existence of fixed points for multivalued generalized w-contractive maps not involving the extended Hausdorff metric. Consequently, 
several known fixed point results are either generalized or improved.</description><Author>Abdul Latif and Afrah A. N. Abdou</Author><copyright>&amp;#169; 2009, Hindawi Publishing Corporation. All rights reserved.</copyright></item><item><title>Monotone Generalized Nonlinear Contractions in Partially Ordered Metric Spaces</title><link>http://www.hindawi.com/journals/fpta/2008/131294.html</link><description>A concept of g-monotone mapping is introduced, and some fixed and common fixed point theorems for g-non-decreasing generalized nonlinear contractions in partially ordered complete metric spaces are proved. Presented theorems are generalizations of very recent
fixed point theorems due to Agarwal et al. (2008).</description><Author>Ljubomir &amp;#262;iri&amp;#263;, Nenad Caki&amp;#263;, Miloje Rajovi&amp;#263;, and Jeong Sheok Ume</Author><copyright>&amp;#169; 2009, Hindawi Publishing Corporation. All rights reserved.</copyright></item><item><title>Approximating Common Fixed Points of Lipschitzian Semigroup in Smooth Banach Spaces</title><link>http://www.hindawi.com/journals/fpta/2008/363257.html</link><description>Let S be a left amenable semigroup, let &amp;#x1D4AE;={T(s):s&amp;#x2208;S} be a representation of S as Lipschitzian mappings from a nonempty compact convex
subset C of a smooth Banach space E into C with a uniform Lipschitzian condition, let {&amp;#x03BC;n} be a strongly left regular sequence of means defined on an &amp;#x1D4AE;-stable subspace of l&amp;#x221E;(S), let f be a contraction on C, and let {&amp;#x03B1;n}, {&amp;#x03B2;n}, and {&amp;#x03B3;n} be sequences in (0, 1) such that &amp;#x03B1;n+&amp;#x03B2;n+&amp;#x03B3;n=1, for all n. Let xn+1=&amp;#x03B1;nf(xn)+&amp;#x03B2;nxn+&amp;#x03B3;nT(&amp;#x03BC;n)xn, for all n&amp;#x2265;1. Then, under suitable hypotheses on the constants, we show that {xn} converges strongly to some z in F(&amp;#x1D4AE;), the set of common fixed points of &amp;#x1D4AE;, which is the unique solution of the variational inequality &amp;#x2329;(f&amp;#x2212;I)z,J(y&amp;#x2212;z)&amp;#x0232A;&amp;#x2264;0, for all y&amp;#x2208;F(&amp;#x1D4AE;).</description><Author>Shahram Saeidi</Author><copyright>&amp;#169; 2009, Hindawi Publishing Corporation. All rights reserved.</copyright></item></channel></rss>