نتایج جستجو برای: nonspreading mappings

تعداد نتایج: 21884  

Journal: :Boletim da Sociedade Paranaense de Matemática 2021

In this paper, we studied a new class of nonspreading-type mappings more general than the strictly pseudononspreading and generalized nonspreading mappings. We state prove some strong convergence theorems Mann-type Ishikawa-type algorithms for approximating fixed points our in Hadamard spaces.

2012
WATARU TAKAHASHI JEN-CHIH YAO

In this paper, we introduce a broad class of nonlinear mappings in a Hilbert space which contains the classes of nonexpansive mappings, nonspreading mappings, hybrid mappings and contractive mappings. Then we prove fixed point theorems for the class of such mappings. Using these results, we prove well-known and new fixed point theorems in a Hilbert space. We finally give an open problem which i...

2014
Eskandar Naraghirad Ngai-Ching Wong Jen-Chih Yao

The Opial property of Hilbert spaces and some other special Banach spaces is a powerful tool in establishing fixed point theorems for nonexpansive, and more generally, nonspreading mappings. Unfortunately, not every Banach space shares the Opial property. However, every Banach space has an alike Bregman-Opial property for Bregman distances. In this paper, using Bregman distances, we introduce t...

2012
WATARU TAKAHASHI NGAI-CHING WONG JEN-CHIH YAO

In this paper, we first introduce a class of nonlinear mappings called generic generalized nonspreading which contains the class of generalized nonspreading mappings in a Banach space and then prove an attractive point theorem for such mappings in a Banach space. Furthermore, we prove a mean convergence theorem of Baillon’s type and a weak convergence theorem of Mann’s type for such nonlinear m...

2014
Yi-Xin Wen

In this paper, an iterative algorithm for equilibrium problems and a class of strictly pseudononspreading mappings which is more general than the class of nonspreading mappings studied recently in Kurokawa and Takahashi [23] is proposed. Some weak convergence theorems are proved under suitable conditions in Hilbert space.

2012
WATARU TAKAHASHI JEN-CHIH YAO

In this paper, using the concept of attractive points of a nonlinear mapping, we obtain a strong convergence theorem of Halpern’s type [6] for a wide class of nonlinear mappings which contains nonexpansive mappings, nonspreading mappings and hybrid mappings in a Hilbert space. Using this result, we obtain well-known and new strong convergence theorems of Halpern’s typ in a Hilbert space. In par...

2011
Lai-Jiu Lin Chih-Sheng Chuang Zenn-Tsun Yu

* Correspondence: [email protected]. edu.tw Department of Mathematics, National Changhua University of Education, Changhua, 50058, Taiwan Full list of author information is available at the end of the article Abstract In this paper, we introduce generalized hybrid mapping on CAT(0) spaces. The class of generalized hybrid mappings contains the class of nonexpansive mappings, nonspreading mappings,...

Journal: :international journal of nonlinear analysis and applications 2011
u. singthong s. suntai

in this paper by using the idea of mean convergence, weintroduce an iterative scheme for finding a common element of theset of solutions of an equilibrium problem and the fixed points setof a nonspreading-type mappings in hilbert space. a strongconvergence theorem of the proposed iterative scheme is establishedunder some control conditions. the main result of this paper extendthe results obtain...

2011
Lai-Jiu Lin Chih-Sheng Chuang Zenn-Tsun Yu

* Correspondence: [email protected]. edu.tw Department of Mathematics, National Changhua University of Education, Changhua, 50058, Taiwan Full list of author information is available at the end of the article Abstract In this paper, we introduced two new classes of nonlinear mappings in Hilbert spaces. These two classes of nonlinear mappings contain some important classes of nonlinear mappings, l...

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