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HB-Continuous Mappings in L-Topological Space
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作者 Najah A. AlSaedi 《Advances in Pure Mathematics》 2024年第5期333-353,共21页
In this paper, we introduce and study the notion of HB-closed sets in L-topological space. Then, HB-convergence theory for L-molecular nets and L-ideals is established in terms of HB-closedness. Finally, we give a new... In this paper, we introduce and study the notion of HB-closed sets in L-topological space. Then, HB-convergence theory for L-molecular nets and L-ideals is established in terms of HB-closedness. Finally, we give a new definition of fuzzy H-continuous [1] which is called HB-continuity on the basis of the notion of H-bounded L-subsets in L-topological space. Then we give characterizations and properties by making use of HB-converges theory of L-molecular nets and L-ideals. 展开更多
关键词 L-Topological Space HB-Closed set H-Bounded set HB-Continuous mappings HB-Convergence L-Molecular Nets L-Ideals
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Mapping of three QTLs for seed setting and analysis on the candidate gene for qSS-1 in rice(Oryza sativa L.) 被引量:2
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作者 Elsheikh Y M Ahmed ZHANG Yan-pei +5 位作者 YU Jian-ping Rashid M A Rehman ZHANG Zhan-ying ZHANG Hong-liang LI Jin-jie LI Zi-chao 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2016年第4期735-743,共9页
The lower seed setting is one of the major hindrances which face grain yield in rice. One of the main reasons to cause low spikelet fertility (seed setting) is male sterility or pollen abortion. Notably, pollen abor... The lower seed setting is one of the major hindrances which face grain yield in rice. One of the main reasons to cause low spikelet fertility (seed setting) is male sterility or pollen abortion. Notably, pollen abortion has been frequently observed in advanced progenies of rice. In the present study, 149 BC2F6 individuals with significant segregation in spikelet fertility were generated from the cross between N040212 (indica) and Nipponbare (japonica) and used for primary gene mapping. Three QTLs, qSS-1, qSS-7 and qSS-9 at chromosomes 1, 7 and 9, respectively, were found to be associated with seed setting. The recombinant analysis and the physical mapping information from publicly available resources exhibited that the qSS-1, qSS-7 and qSS-9 loci were mapped to an interval of 188, 701 and 3741 kb, respectively. The seed setting responsible for QTL qSS-1 was further fine mapped to 93.5 kb by using BC2F7 population of 1 849 individuals. There are 16 possible putative genes in this 93.5 kb region. Pollen vitality tests and artificial pollination indicated that the male gamete has abnormal pollen while the female gamete was normal. These data showed that low seed setting rate relative to qSS-1 may be caused by abnormal pollen grains. These results will be useful for cloning, functional analysis of the target gene governing spikelet fertility (seed setting) and understanding the genetic bases of pollen sterility. 展开更多
关键词 rice (Oryza sativa L.) QTL mapping seed setting pollen sterility
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A REMARK ON THE DERIVATE OF SET-VALUED MAPPING 被引量:1
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作者 Chen Bing(Dept. of Math. Jinzhou Teachers CollegeJinzhou 121003) 《数学研究》 CSCD 1994年第1期51-55,共5页
AREMARKONTHEDERIVATEOFSET-VALUEDMAPPING¥ChenBing(Dept.ofMath.JinzhouTeachersCollegeJinzhou121003)Abstract:Th... AREMARKONTHEDERIVATEOFSET-VALUEDMAPPING¥ChenBing(Dept.ofMath.JinzhouTeachersCollegeJinzhou121003)Abstract:Thederivateofset-va... 展开更多
关键词 集值映射 H-导出数 集值积分 巴拿赫空间
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Self-organizing Map Method Based on Real Rough Sets Space and Its Application of Pattern Recognition 被引量:2
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作者 肖迪 胡寿松 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2006年第1期72-76,共5页
This paper presents a real rough sets space and corresponding concepts of real lower and upper approximation sets which correspond to the real-valued attributes. Therefore, the real rough sets space can be investigate... This paper presents a real rough sets space and corresponding concepts of real lower and upper approximation sets which correspond to the real-valued attributes. Therefore, the real rough sets space can be investigated directly. A rhombus neighborhood for SOM is proposed, and the combination of SOM and rough sets theory is explored. According to the distance between the weight of winner node and the input vector in the real rough sets space, new weight learning rules are defined. The modified method makes the classification of the output of SOM clearer and the intervals of different classes larger. Finally, an example based on fault identification of an aircraft actuator is presented, The result of the simulation shows that this method is right and effective. 展开更多
关键词 rough sets theory self-organlzlng map real value rough set rhombus neighborhood pattern recognition
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Likely Limit Sets of a Class of p-order Feigenbaum's Maps 被引量:1
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作者 WANG WEI LIAO LI 《Communications in Mathematical Research》 CSCD 2012年第2期137-145,共9页
A continuous map from a closed interval into itself is called a p-order Feigenbaum's map if it is a solution of the Feigenbaum's equation fP(λx)=λf(x). In this paper, we estimate Hausdorff dimensions of likely... A continuous map from a closed interval into itself is called a p-order Feigenbaum's map if it is a solution of the Feigenbaum's equation fP(λx)=λf(x). In this paper, we estimate Hausdorff dimensions of likely limit sets of some p-order Feigenbaum's maps. As an application, it is proved that for any 0 〈 t 〈 1, there always exists a p-order Feigenbaum's map which has a likely limit set with Hausdorff dimension t. This generalizes some known results in the special case of p =2. 展开更多
关键词 Feigenbaum's equation Feigenbaum's map likely limit set Hausdorff dimension
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ON THE GENERALIZED FRITZ JOHN OPTIMALITY CONDITIONS OF VECTOR OPTIMIZATION WITH SET-VALUED MAPS UNDER BENSON PROPER EFFICIENCY 被引量:3
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作者 盛宝怀 刘三阳 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 2002年第12期1444-1451,共8页
A kind of tangent derivative and the concepts of strong and weak * pseudoconvexity for a set-valued map are introduced. By the standard separation theorems of the convex sets and cones the optimality Fritz John condit... A kind of tangent derivative and the concepts of strong and weak * pseudoconvexity for a set-valued map are introduced. By the standard separation theorems of the convex sets and cones the optimality Fritz John condition of set-valued optimization under Benson proper efficiency is established, its sufficience is discussed. The form of the optimality conditions obtained here completely tally with the classical results when the set-valued map is specialized to be a single-valued map. 展开更多
关键词 contingent tangent cone set-valued map Benson proper efficiency Fritz John condition
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Benson proper efficiency for vector optimization of generalized subconvexlike set-valued maps in ordered linear spaces 被引量:2
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作者 周志昂 《Journal of Shanghai University(English Edition)》 CAS 2010年第5期374-379,共6页
Several equivalent statements of generalized subconvexlike set-valued map are established in ordered linear spaces. Using vector closure, we introduce Benson proper efficient solution of vector optimization problem. U... Several equivalent statements of generalized subconvexlike set-valued map are established in ordered linear spaces. Using vector closure, we introduce Benson proper efficient solution of vector optimization problem. Under the assumption of generalized subconvexlikeness, scalarization, multiplier and saddle point theorems are obtained in the sense of Benson proper efficiency. 展开更多
关键词 set-valued maps vector closure generalized subconvexlikeness Benson proper efficient solution
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SET VALUE MAPPING AND ITS APPLICATION
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作者 李挺 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 2006年第2期263-268,共6页
The dynamics of set value mapping is considered. For the upper semi-continuous set value maps, the existence of attractors under some conditions and the upper semi-continuity of attractors under the perturbation are p... The dynamics of set value mapping is considered. For the upper semi-continuous set value maps, the existence of attractors under some conditions and the upper semi-continuity of attractors under the perturbation are proved. Its application in numerical simulation of differential equation is also considered. The upper semi-continuity of attractors in set value maps under the perturbation is used to show the reasonable of subdivision algorithm and interval arithmetic in numerical simulation of differential equation. 展开更多
关键词 set value mapping ATTRACTOR upper semi-continuity
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ε-super Effcient Solutions of Optimization Problems with Set-valued Maps in Locally Convex Space 被引量:1
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作者 WANG Shu-yu LIU Wan-li 《Chinese Quarterly Journal of Mathematics》 CSCD 2011年第1期26-31,共6页
In this paper,the ε-super effcient solution for set-valued map vector optimization in locally convex space is introduced.And under the assumption of the nearly generalized cone-subconvexlikeness for set-valued maps,u... In this paper,the ε-super effcient solution for set-valued map vector optimization in locally convex space is introduced.And under the assumption of the nearly generalized cone-subconvexlikeness for set-valued maps,used new methods,the scalarization theorem and Lagrange multiplier theorem for ε-super effcient solution are established. 展开更多
关键词 nearly generalized cone-subconvexlikeness set-valued map ε-super effcient solution lagrange multiplier
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THE EXISTENCE THEOREM OF THE CONE-WEAK SUBDIFFERENTIAL OF SET-VALUED MAPPING 被引量:1
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作者 HUYUDA MENGZHIQING 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 1998年第4期473-477,共5页
In this paper, the existence theorem of the cone weak subdifferential of set valued mapping in locally convex topological vector space is proved. Received March 30,1998. 1991 MR Subject Classification: 4... In this paper, the existence theorem of the cone weak subdifferential of set valued mapping in locally convex topological vector space is proved. Received March 30,1998. 1991 MR Subject Classification: 47H17,90C29. 展开更多
关键词 set valued mapping cone convex cone weak subgradient cone weak subdifferential.
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Rough Set Theory Based Map Matching Scheme for Mobile Location System
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作者 Ruyun Zhang Peng Li Shanshan Wang 《通讯和计算机(中英文版)》 2010年第3期39-43,共5页
关键词 移动定位系统 粗糙集理论 地图匹配 统计 移动用户 无线网络 道路驾驶 数据通信
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FUZZY APPROACHING SET AND FUZZYAPPROACHING FUNCTIONAL MAPPING
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作者 曹纯 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 1998年第11期0-0,0-0+0-0+0-0+0-0+0,共11页
By establishing the concepts of fuzzy approaching set and fuzzy approaching functional mapping and making research on them, a new method for time series prediction is introduced.
关键词 fuzzy approaching set fuzzy approaching functional mapping time series prediction
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NON-WANDERING SET OF A CONTINUOUS GRAPH MAP
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作者 GuRongbao SunTaixiang ZhengTingting 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2003年第4期477-481,共5页
The non-wandering set Ω(f) for a graph map f is investigated. It is showed that Ω(f) is contained in the closure of the set ER(f) of eventually recurrent points of f and ω-limit set ω(Ω(f)) of Ω(f) is containe... The non-wandering set Ω(f) for a graph map f is investigated. It is showed that Ω(f) is contained in the closure of the set ER(f) of eventually recurrent points of f and ω-limit set ω(Ω(f)) of Ω(f) is contained in the closure of the set R(f) of recurrent points of f. 展开更多
关键词 graph map recurrent point eventually recurrent point ω-limit set non-wandering set
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Iterative Approximation with Errors for Generalized Set-Valued Strongly Accretive Mapping in Banach Spaces
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作者 张勇 《Journal of Southwest Jiaotong University(English Edition)》 2007年第1期70-74,共5页
A new concept of generalized set-valued strongly accretive mappings in Banach spaces was given and some strong convergence theorems of Ishikawa and Mann iterative process with errors approximation methods by Huang et ... A new concept of generalized set-valued strongly accretive mappings in Banach spaces was given and some strong convergence theorems of Ishikawa and Mann iterative process with errors approximation methods by Huang et al. was proved. The results presented in this paper improve and extend the earlier results obtained by Huang et al. 展开更多
关键词 Generalized set-valued strongly accretive mappings Ishikawa and Mann iterative processes with errors q-Uniformly Smooth Banach spaces Generalized duality mapping
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集值映射的Michel-Penot方向导数与Michel-Penot次微分
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作者 黄辉 陈智勇 《云南大学学报(自然科学版)》 CAS CSCD 北大核心 2024年第5期819-828,共10页
采用标量化方法,研究集值映射的方向导数和次微分.借助Gerstewizt函数,给出了集值映射的Michel-Penot方向导数和Michel-Penot次微分的概念,研究了它们的性质,建立了它们的计算法则,并利用Michel-Penot次微分给出了无约束集值优化问题的... 采用标量化方法,研究集值映射的方向导数和次微分.借助Gerstewizt函数,给出了集值映射的Michel-Penot方向导数和Michel-Penot次微分的概念,研究了它们的性质,建立了它们的计算法则,并利用Michel-Penot次微分给出了无约束集值优化问题的优化条件. 展开更多
关键词 Michel-Penot方向导数 Michel-Penot次微分 集值映射 优化条件
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Iterative Processes with Errors for Generalized Set-Valued φ-Hemi-contractive Mapping in Banach Spaces
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作者 张勇 《Journal of Southwest Jiaotong University(English Edition)》 2006年第2期194-199,共6页
A new conception of generalized set-valued Ф-hemi-contractive mapping in Banach spaces is presented. Some strong convergence theorems of Ishikawa and Mann iterative approximation with errors is proved. The results in... A new conception of generalized set-valued Ф-hemi-contractive mapping in Banach spaces is presented. Some strong convergence theorems of Ishikawa and Mann iterative approximation with errors is proved. The results in this paper improve and extend the earlier results. 展开更多
关键词 Generalized set-valued Ф-hemi-contractive mapping Ishikawa and Mann iterative processes with errors q-uniformlysmooth Banach space Hausdorff metric Generalized duality mapping
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非圆形隧洞衬砌支护下应力与位移的新解法
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作者 吕爱钟 崔耀启 +1 位作者 蔡辉 马耀财 《工程地质学报》 CSCD 北大核心 2024年第1期206-215,共10页
以往在利用平面弹性复变函数方法进行衬砌支护作用下非圆形隧洞的力学分析时,一般将洞室外域保角映射到象平面的单位圆外域,并认为可以利用同一个映射函数将衬砌截面映射到象平面的圆环域内。当衬砌厚度很薄时,这种方法是可行的,而当衬... 以往在利用平面弹性复变函数方法进行衬砌支护作用下非圆形隧洞的力学分析时,一般将洞室外域保角映射到象平面的单位圆外域,并认为可以利用同一个映射函数将衬砌截面映射到象平面的圆环域内。当衬砌厚度很薄时,这种方法是可行的,而当衬砌相对较厚时,利用同一映射函数所得到的衬砌截面形状发生严重失真。为解决此问题,本文引入两套映射函数,分别将洞室外域映射到象平面的单位圆的圆外域,衬砌截面映射到圆环域。这种方法可以适应于不同的衬砌厚度,利用这种方式获得的衬砌截面,在衬砌较厚时仍能保证衬砌厚度相对均匀。在求解解析函数过程中不再采用传统的幂级数解法,而是使用边界配点法,将两套映射函数结合,获得了该问题的应力解和位移解。本文以马蹄形隧洞为例,求解结果与ANSYS软件所得数值解吻合很好,分析了衬砌厚度对隧洞应力和位移的影响。根据本文解答可以方便、快捷地进行相近条件下隧道的初步设计。 展开更多
关键词 复变函数方法 非圆形压力隧洞 均匀厚度衬砌 两套映射函数 边界配点法
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图-凸集值映射的性质
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作者 万莉娟 赵欣 +1 位作者 佟浩 吴葛 《高师理科学刊》 2024年第7期1-4,共4页
借助回收映射和余切导数得到了图-凸集值映射的两个性质.
关键词 图-凸集值映射 回收锥 回收映射 余切锥 余切导数
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基于HDFS管理MapGIS K9瓦片地图集的研究与实现 被引量:8
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作者 万波 党琦 杨林 《计算机应用与软件》 CSCD 北大核心 2013年第12期232-235,共4页
关系型数据库在管理海量空间数据时遇到诸多瓶颈,HDFS(Hadoop Distributed Filesystem)通过将大数据分割为多个小数据块,并将其分别存储在多个数据节点组成的分布式集群中,成为一种新的存储海量空间数据的方法。使用HDFS作为平台,利用... 关系型数据库在管理海量空间数据时遇到诸多瓶颈,HDFS(Hadoop Distributed Filesystem)通过将大数据分割为多个小数据块,并将其分别存储在多个数据节点组成的分布式集群中,成为一种新的存储海量空间数据的方法。使用HDFS作为平台,利用数据结构类型MapFile设计一种管理MapGIS K9瓦片地图集的方式,并进行实验。实验表明用HDFS管理海量瓦片地图比传统方式管理更易扩展,更加安全,效率更加高。 展开更多
关键词 海量空间数据 管理 HDFS 瓦片地图集
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基于Topic Map的网络课件模型研究 被引量:7
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作者 周亭 周竹荣 黄果 《计算机工程与设计》 CSCD 北大核心 2007年第7期1683-1687,共5页
在分析传统网络课件结构的基础上,对基于主题图的网络课件采用集合论的方法进行了建模,并对TMC模型中的规则、性质及其作用进行了研究,利用Java和TM4L基于主题图描述语言(XTM)开发了TMC的原型系统,对该模型进行了验证。
关键词 主题图 网络课件 集合论 超文本 形式化模型
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