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排序方式: 共有457条查询结果,搜索用时 15 毫秒
341.
Kyung Soo Kim 《Journal of Mathematical Analysis and Applications》2009,358(2):261-3419
Let S be a semitopological semigroup. Let C be a closed convex subset of a uniformly convex Banach space E whose norm is Fréchet differentiable and be a continuous representation of S as almost asymptotically nonexpansive type mapping of C into C such that the common fixed point set F(ℑ) of ℑ in C is nonempty. In this paper, we prove that if S is right reversible then for each x∈C, the closed convex set consists of at most one point. We also prove that if S is reversible, then the intersection is nonempty for each x∈C if and only if there exists a nonexpansive retraction P of C onto F(ℑ) such that PTt=TtP=P for all t∈S and Px is in the closed convex hull of for each x∈C. 相似文献
342.
Convergence theorems of fixed points for asymptotically hemi-pseudocontractive mappings 总被引:1,自引:0,他引:1
Weiping Guo 《Applied mathematics and computation》2009,215(1):16-21
In this paper, the concept of asymptotically hemi-pseudocontractive mapping in Banach space, which is a proper generalization of asymptotically pseudocontractive mapping with nonempty fixed point set as shown by an example, is introduced. Some sufficient and necessary conditions on the strong convergence of the modified Ishikawa and the modified Mann iteration sequences with mean errors for uniformly L-Lipshitzian asymptotically hemi-pseudocontractive mappings are presented. 相似文献
343.
The purpose of this paper is to propose a general alternative regularization algorithm for split equality common fixed-point problem of nonexpansive operator in the framework of infinite-dimensional Hilbert spaces. We prove the strong convergence of the proposed algorithm with the stepsizes chosen by two ways. As a consequence, we obtain strong convergence theorems for split equality common fixed-point problem of firmly-nonexpansive operator and split equality problem. The efficiency of the proposed algorithms is illustrated by some numerical tests. 相似文献
344.
Behzad Djafari Rouhani Hadi Khatibzadeh 《Journal of Mathematical Analysis and Applications》2010,363(2):648-654
In this paper, we establish the strong convergence of possible solutions to the following nonhomogeneous second order evolution system
345.
In this paper, a new two-step iterative scheme for a finite family of Ii-asymptotically nonexpansive nonself-mappings is constructed in a uniformly convex Banach space. Weak and strong convergence theorems of this iterative scheme to a common fixed point of and are proved in a uniformly convex Banach space. The results of this paper improve and extend the corresponding results of Temir [2]. 相似文献
346.
Filomena Cianciaruso Giuseppe Marino Xuewu Wang 《Applied mathematics and computation》2010,216(12):3558-3567
In this paper, we introduce an Ishikawa implicit iterative process with errors for a finite family of N asymptotically nonexpansive mappings as follows:
347.
在实一致光滑、一致凸Banach空间中提出了两种修正杂交迭代算法,证明了迭代序列既强收敛到极大单调算子的零点, 又强收敛到非扩展映射的不动点的结论. 推广和补充了以往的研究工作. 相似文献
348.
A.R.Khan N.Hussain A.B.Thaheem 《分析论及其应用》2004,20(2):189-198
We pressent new Ky Fan type best approximation theorems for a discontinuous multivalued map onmetrizable topological vector spaces and hyperconvex spaces. In addition, fixed point results are derivedfor the map studied. Our work generalizes severl results in approximation theory. 相似文献
349.
(渐近)非扩张映象的不动点的迭代逼近 总被引:9,自引:0,他引:9
ZengLuchuan 《高校应用数学学报(英文版)》2001,16(4):402-408
Let E be a uniformly convex Banach space which satisfies Opial‘s condition or has aFrechet differentiable norm,and C be a bounded closed convex subset of E. If T: C→C is(asymptotically)nonexpansive,then the modified Ishikawa iteration process defined by 相似文献
350.