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ON THE DEGREE THEORY FOR MULTIVALUED(S_+) TYPE MAPPINGS 被引量:1
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作者 刘振海 张石生 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 1998年第12期0-0,0-0+0-0+0-0+0,共9页
关键词 AM UC CR ON THE DEGREE THEORY FOR multivalued TYPE mappingS SI
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PRODUCTS OF RESOLVENTS AND MULTIVALUED HYBRID MAPPINGS IN C AT(0) SPACES
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作者 Gholamreza ZAMANI ESKANDANI Soheila AZARMI +4 位作者 Masoumeh RAEISI Department of Pure Mathematics Faculty of Mathematical Sciences University of Tabriz 《Acta Mathematica Scientia》 SCIE CSCD 2018年第3期791-804,共14页
In this article, we introduce and investigate the concept of multivalued hybrid mappings in C AT(0) spaces by using the concept of quasilinearization. Also, we present a new iterative algorithm involving products of... In this article, we introduce and investigate the concept of multivalued hybrid mappings in C AT(0) spaces by using the concept of quasilinearization. Also, we present a new iterative algorithm involving products of Moreau-Yosida resolvents for finding a common element of the set of minimizers of a finite family of convex functions and a common fixed point of two multivalued hybrid mappings in C AT(0) spaces. 展开更多
关键词 multivalued hybrid mappings convex optimization C AT(0) spaces
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g-η-Monotone mapping and resolvent operator technique for solving generalized implicit variational-like inclusions
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作者 张清邦 丁协平 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 2007年第1期11-18,共8页
A new class of g-η-monotone mappings and a class of generalized implicit variational-like inclusions involving g-η-monotone mappings are introduced. The resolvent operator of g-η-monotone mappings is defined and it... A new class of g-η-monotone mappings and a class of generalized implicit variational-like inclusions involving g-η-monotone mappings are introduced. The resolvent operator of g-η-monotone mappings is defined and its Lipschitz continuity is presented, An iterative algorithm for approximating the solutions of generalized implicit wriational- like inclusions is suggested and analyzed. The convergence of iterative sequences generated by the algorithm is also proved, 展开更多
关键词 g-η-monotone mapping resolvent operator generalized implicit variational-like inclusion iterative algorithm
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On Positive Eigenvalues and Positive Fixed Points of Multivalued Condensing Mappings
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作者 赵增勤 《Chinese Quarterly Journal of Mathematics》 CSCD 1992年第4期72-75,共4页
In this paper,we discuss the calculations of fixed point indexs for multivalued condensing mappings and k-set-contraction mappings,obtain some theorems on the eigenvalues and the fixed points under the suitable condit... In this paper,we discuss the calculations of fixed point indexs for multivalued condensing mappings and k-set-contraction mappings,obtain some theorems on the eigenvalues and the fixed points under the suitable conditions. Our conclusions improve and generalize some well-known results. 展开更多
关键词 positive eigenvalue multivalued condensing mapping k-set-contraction mapping
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Proximal point algorithm for a new class of fuzzy set-valued variational inclusions with (H,η)-monotone mappings
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作者 李红刚 《Journal of Chongqing University》 CAS 2008年第1期79-84,共6页
We introduced a new class of fuzzy set-valued variational inclusions with (H,η)-monotone mappings. Using the resolvent operator method in Hilbert spaces, we suggested a new proximal point algorithm for finding approx... We introduced a new class of fuzzy set-valued variational inclusions with (H,η)-monotone mappings. Using the resolvent operator method in Hilbert spaces, we suggested a new proximal point algorithm for finding approximate solutions, which strongly converge to the exact solution of a fuzzy set-valued variational inclusion with (H,η)-monotone. The results improved and generalized the general quasi-variational inclusions with fuzzy set-valued mappings proposed by Jin and Tian Jin MM, Perturbed proximal point algorithm for general quasi-variational inclusions with fuzzy set-valued mappings, OR Transactions, 2005, 9(3): 31-38, (In Chinese); Tian YX, Generalized nonlinear implicit quasi-variational inclusions with fuzzy mappings, Computers & Mathematics with Applications, 2001, 42: 101-108. 展开更多
关键词 variational inclusion (H η)-monotone mapping resolvent operator technique fuzzy set-valued mapping proximal point algorithm: convergence of numerical methods
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DEGREE THEORY FOR MULTIVALUED (S) TYPE MAPPINGS AND FIXED POINT THEOREMS
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作者 张石生 陈玉清 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 1990年第5期441-454,共14页
The main purpose of this paper is devoted to generalizing the results of Browder[1,2]This paper consists of four parts. In the first part, we introduce the concepts of multivalued (S) and (S), type mappings and the co... The main purpose of this paper is devoted to generalizing the results of Browder[1,2]This paper consists of four parts. In the first part, we introduce the concepts of multivalued (S) and (S), type mappings and the concepts of the limits of multivalued (S) and (S) + type mappings. These kinds of mappings contain many monotone type mappings, such as maximal monotone mapping, bounded pseudo-monotone mapping and bounded generalized pseudo-monotone mapping, as its special cases. In the second part we define the pseudo-degree for (S) type mapping and the degree for (S)+ type mapping. These two kinds of degrees are all the generalizations of the degree defined by Browder[1,2] As applications, we utilize the degree theory presented in part 2 to study the existence of solutions for the multivalued operator equations (see part 3) and to obtain some new fixed point theorems in part 4. 展开更多
关键词 TYPE mappingS AND FIXED POINT THEOREMS DEGREE THEORY FOR multivalued
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Convergence Theorems for <i>k</i>-Strictly Pseudononspreading Multivalued in Hilbert Spaces
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作者 Hongbo Liu Yi Li 《Advances in Pure Mathematics》 2014年第7期317-323,共7页
We introduce a k-strictly pseudononspreading multivalued in Hilbert spaces more general than the class of nonspreading multivalued. We establish some weak convergence theorems of the sequences generated by our iterati... We introduce a k-strictly pseudononspreading multivalued in Hilbert spaces more general than the class of nonspreading multivalued. We establish some weak convergence theorems of the sequences generated by our iterative process. Some new iterative sequences for finding a common element of the set of solutions for equilibrium problem was introduced. The results improve and extend the corresponding results of Osilike Isiogugu [1] (Nonlinear Anal.74 (2011)) and others. 展开更多
关键词 EQUILIBRIUM Problem K-Strictly Pseudononspreading multivalued mapping COMMON Fixed Point
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On Fixed Point and Almost Fixed Point Problems of Lower Semicontinuous Type Multivalued Mappings 被引量:2
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作者 Liang Yu LUAN Xian WU 《Acta Mathematica Sinica,English Series》 SCIE CSCD 2005年第5期1027-1034,共8页
In the present paper, some new almost fixed point theorems and fixed point theorems for lower semicontinuous type multivalued mappings are obtained in metrizable H-spaces.
关键词 Lc.-metric space H-SPACE Lower semicontinuous multivalued mapping Locally-uniformly weak lower semicontinuous multivalued mapping
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Fixed Points of Multivalued Quasi-nonexpansive Mappings Using a Faster Iterative Process
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作者 Safeer Hussain KHAN Mujahid ABBAS Sartaj ALI 《Acta Mathematica Sinica,English Series》 SCIE CSCD 2014年第7期1231-1241,共11页
In this article, we prove some strong and weak convergence theorems for quasi-nonexpansive multivalued mappings in Banach spaces. The iterative process used is independent of Ishikawa iterative process and converges f... In this article, we prove some strong and weak convergence theorems for quasi-nonexpansive multivalued mappings in Banach spaces. The iterative process used is independent of Ishikawa iterative process and converges faster. Some examples are provided to validate our results. Our results extend and unify some results in the contemporary literature. 展开更多
关键词 multivalued nonexpansive mapping common fixed point condition (I) weak and strongconvergence
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A FIXED POINT THEOREM FOR MULTIVALUED NONEXPANSIVE MAPPINGS IN BANACH SPACES OF NORMAL STRUCTURE
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作者 解基培 《Chinese Science Bulletin》 SCIE EI 1990年第4期265-267,共3页
Since the appearance of T. C. Lim’s fixed point theorem for multivalued nonexpansive mappings in uniformly convex spaces in 1974, various generalizations and modifications have been obtained (e.g. [2, 3] and other re... Since the appearance of T. C. Lim’s fixed point theorem for multivalued nonexpansive mappings in uniformly convex spaces in 1974, various generalizations and modifications have been obtained (e.g. [2, 3] and other references in [4, 5]). However, the corresponding fixed point problem for Banach spaces of normal structure remains open. The present report shall give a positive answer to it. 展开更多
关键词 multivalued nonexpansive mapping normal structure f-quasi-invariant
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两个论域上的粗糙集模型及其应用 被引量:14
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作者 邱雅竹 付蓉 《四川师范大学学报(自然科学版)》 CAS CSCD 北大核心 2005年第1期15-18,共4页
主要从标准粗糙集出发介绍了将单个非空有限论域上的粗糙集推广到两个非空有限论域上形成的两个论域上的粗糙集,对其性质进行了讨论,以及该模型在疾病诊断上的应用.
关键词 粗糙集 论域 多值映射 近似算子 相容关系
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多值移位型计数器设计 被引量:4
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作者 吴桂初 陈偕雄 吴烈 《浙江大学学报(理学版)》 CAS CSCD 北大核心 2005年第5期529-532,共4页
分析和讨论了基于全状态图的多值移位型计数器的设计方法,指出了当将该方法用于更多值的移位型计数器的设计时,将变得非常复杂,失去了直观性和方便性的特点.提出了多值全状态表及基于全状态表的多值移位型计数器设计方法.此方法能解决... 分析和讨论了基于全状态图的多值移位型计数器的设计方法,指出了当将该方法用于更多值的移位型计数器的设计时,将变得非常复杂,失去了直观性和方便性的特点.提出了多值全状态表及基于全状态表的多值移位型计数器设计方法.此方法能解决上述问题,并给出了二变量四值移位型计数器的设计实例. 展开更多
关键词 多值逻辑 移位计数器 全状态图 全状态表
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多值(S_+)型映象的度理论 被引量:3
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作者 刘振海 张石生 《应用数学和力学》 CSCD 北大核心 1998年第12期1055-1062,共8页
本文的目的是推广张石生和陈玉清(多值(S)型映象度理论以及不动点定理)的结果·假设L是闭稠定线性极大单调映象,S是关于D(L)的(S+)型多值映象,我们建立具有形式F=L+S的多值映象的拓扑度·
关键词 拓扑度 多值映象 不动点 度理论 变分不等式
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双论域上的S-粗集及应用 被引量:3
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作者 鲁小云 杨勇 《计算机工程与应用》 CSCD 北大核心 2010年第5期33-35,共3页
原始从单论域出发讨论动态系统的知识发现和规则挖掘,其应用范围受到极大限制。通过构造性方法对原始的S-粗集粗糙集模型进行推广,提出双论域上的S-粗集模型。分析了S-粗集与Z.Pawlak粗集、以及单论域S-粗集与双论域S-粗集的关系。并讨... 原始从单论域出发讨论动态系统的知识发现和规则挖掘,其应用范围受到极大限制。通过构造性方法对原始的S-粗集粗糙集模型进行推广,提出双论域上的S-粗集模型。分析了S-粗集与Z.Pawlak粗集、以及单论域S-粗集与双论域S-粗集的关系。并讨论了双论域S-粗集一些相关性质及在疾病诊断上的应用。 展开更多
关键词 粗糙集 S-粗集 双论域 集值映射
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基于三值K图的多输出三值函数化简的新方法 被引量:2
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作者 郑丹丹 陈偕雄 《浙江大学学报(理学版)》 CAS CSCD 北大核心 2008年第1期44-47,共4页
参照二值多输出逻辑函数的K图化简,提出一种携带重复次数信息的多输出三值K图,从而避免在多个输出之间画大量的与门.本文基于二值多输出函数及三值单输出函数K图化简的讨论,提出了基于三值K图的多输出三值函数化简的新方法,给出了化简规... 参照二值多输出逻辑函数的K图化简,提出一种携带重复次数信息的多输出三值K图,从而避免在多个输出之间画大量的与门.本文基于二值多输出函数及三值单输出函数K图化简的讨论,提出了基于三值K图的多输出三值函数化简的新方法,给出了化简规则,并用实例作了具体说明.多输出三值函数K图的化简方法大大降低了电路成本. 展开更多
关键词 三值K图 多值逻辑 K图化简
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双论域上的变精度粗糙集模型 被引量:9
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作者 庾慧英 刘尚 《科学技术与工程》 2007年第1期4-7,共4页
在不同论域上定义了变精度粗糙集模型,并讨论相关的性质及其应用。
关键词 粗糙集 变精度粗糙集 双论域 集值映射
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随机集值A-proper映象的随机广义拓扑度 被引量:2
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作者 李志龙 李国祯 《工程数学学报》 CSCD 北大核心 2004年第4期635-638,共4页
本文引入随机集值A-proper映象的随机广义拓扑度的定义,由此得到一些新的随机不动点和随机固有元定理。
关键词 随机集值A-proper映象 随机广义拓扑度
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Banach空间中的多值拟变分包含 被引量:7
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作者 张石生 《应用数学和力学》 EI CSCD 北大核心 2004年第6期572-580,共9页
 引入和研究了Banach空间中的多值拟变分包含问题· 借助预解算子技巧。
关键词 多值拟变分包含 变分不等式 算法 预解算子 M-增生映象 增生映象
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拓扑空间中一些新的不动点定理(英文) 被引量:2
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作者 朱江 李其琛 《应用泛函分析学报》 CSCD 2003年第1期20-26,共7页
介绍了我们在不动点定理方面的一些最新结果 ,包括 :拓扑空间中 Meir- Keeler型映象的不动点定理 ,有序拓扑空间中增算子和多值增映射的不动点定理 ,拓扑空间中压缩映象的不动点定理和多值映象的公共不动点定理 .甚至在通常的度量空间 。
关键词 收缩算子 Meir-Keelerga型映象 压缩映象 多值映象 不动点定理 拓扑空间 不动点定理
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关于多值增生和多值单调映射的连续性 被引量:3
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作者 刘理蔚 《南昌大学学报(理科版)》 CAS 北大核心 2004年第1期17-18,27,共3页
证明下半连续增生和单调映射不可是多值的。
关键词 多值增生 多值单调映射 连续性 下半连续 拓扑空间 集值映射 BANACH空间
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