CONTRACTIBLE

作品数：9被引量：10H指数：2
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相关领域：理学更多>>
相关作者：曹钧胡昊李文杰王定贤王万鹏更多>>
相关机构：西北核技术研究所更多>>
相关期刊：《Applied Mathematics》《Communications in Mathematical Research》《Science China Mathematics》《Applied Mathematics and Mechanics(English Edition)》更多>>
相关基金：国家自然科学基金四川省教育厅资助科研项目更多>>
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Actively contractible and antibacterial hydrogel for accelerated wound healing被引量：2
《Nano Research》2024年第8期7394-7403,共10页Zhaoxin Ji Ting Wei Jiafei Zhu Jiaying Hu Zhisheng Xiao Boxiong Bai Xinying Lv Yu Miao Muchao Chen Cheng Wang Feng Pan Yang Yang Meng Li Qian Chen 
supported by the National Research Programs of China(Nos.2020YFA0211100,and 2022YFA1206500);the National Natural Science Foundation of China(Nos.52250002,and 52325106);Suzhou Key Laboratory of Nanotechnology and Biomedicine,Collaborative Innovation Center of Suzhou Nano Science and Technology,and the 111 Program from the Ministry of Education of China.
Adhesive hydrogel has drawn great attention for wide applications in wound healing owing to its excellent biocompatibility and lasting adhesiveness.However,traditional adhesive hydrogels only keep the wound moist to p...
关键词：ANTI-INFLAMMATORY ANTIBACTERIAL active contraction hydrogel patch wound healing 
Teichmller space of negatively curved metrics on complex hyperbolic manifolds is not contractible
《Science China Mathematics》2017年第4期569-580,共12页FARRELL F. Thomas SORCAR Gangotryi 
We prove that for all n = 4k- 2 and k 2 there exists a closed smooth complex hyperbolic manifold M with real dimension n having non-trivial π1(T<0(M)). T<0(M) denotes the Teichm¨uller space of all negatively curved ...
关键词：space of Riemannian metrics negative curvature complex hyperbolic space 
Annulus and Disk Complex Is Contractible and Quasi-convex
《Communications in Mathematical Research》2013年第4期377-382,共6页Guo Qi-long Qiu Rui-feng Zou Yan-qing Zhang Fa-ze Lei Feng-chun 
The NSF(10901029)of China
The annulus and disk complex is defined and researched. Especially, we prove that this complex is contractible and quasi-convex in the curve complex.
关键词：annulus and disk complex contractible quasi-convex 
Compactness, Contractibility and Fixed Point Properties of the Pareto Sets in Multi-Objective Programming
《Applied Mathematics》2011年第5期556-561,共6页Zdravko Dimitrov Slavov Christina Slavova Evans 
This paper presents the Pareto solutions in continuous multi-objective mathematical programming. We discuss the role of some assumptions on the objective functions and feasible domain, the relationship between them, a...
关键词：Multi-Objective Programming PARETO-OPTIMAL Pareto-Front Compact CONTRACTIBLE Fixed Point RETRACTION 
EQUILIBRIUM PROBLEMS WITH LOWER AND UPPER BOUNDS IN TOPOLOGICAL SPACES被引量：5
《Acta Mathematica Scientia》2005年第4期658-662,共5页丁协平 
ThisprojectwassupportedbytheNSFofSichuanEducationDepartment(2003A081)
By employing a fixed point theorem due to Ding, Park and Jung, some existence theorems of solutions for equilibrium problems with lower and upper bounds are proved in noncompact topological spaces. These results furth...
关键词：Equilibrium problem fixed point theorem contractible space acyclic space topological space 
THE BEST APPROXIMATION AND COINCIDENCE THEOREMS FOR COMPOSITES OF ACYCLIC MAPPINGS
《Applied Mathematics and Mechanics(English Edition)》1999年第5期23-32,共10页丁协平 
Some new coincidence theorem s involving a new class of set_valued mappings containing composites of acyclic mappings defined in a contractible space are proved. For applications, some best approximation theorems an...
关键词：coincidence theorems the best  approximation contractible space composites of acyclic mappings 
COINCIDENCE THEOREMS INVOKING COMPOSITES OF ACYCLIC MAPPINGS AND APPLICATIONS被引量：2
《Acta Mathematica Scientia》1999年第1期53-61,共9页丁协平 
Some new coincidence theorems involving a new class of set-valued mappingscontaining composites of acyclic mappings defined on a contractible space are proved.As applications, some existence theorems of maximal elemen...
关键词：Coincidence theorem maximal element variational inequality best approximation contractible space composites of acyclic mappings 
COVERING PROPERTIES ON H-SPACES AND APPLICATIONS
《Applied Mathematics and Mechanics(English Edition)》1993年第12期1079-1088,共10页丁协平 陈国强 
This project partially supported by National Natural Science Foundation of ChinaThis work was partially supported by NSERC of Canada under grant A-8096
Several theorems on closed (resp. open) covering properties of H-spaces are obtained which improve and generalize the corresponding results of Sperner, Klee, Alexandroff-Pasynkoff, Berge, Ghouila-Houri, Danzer-Grunbau...
关键词：covering property H-SPACE H-convex H-convex hull almost fixed point lower semi-continuous l.c.-space SIMPLEX uniform structure topological vector space locally convex space contractible 
ON(η,d)-CONTRACTIBLE ORBITS OF VECTOR FIELDS被引量：1
《Systems Science and Mathematical Sciences》1989年第3期193-227,共35页廖山涛 
Supported by National Natural Science Foundation of China
Let ■ be the linear space of all C1 vector fields X on a compact n-dimensionalC∞ Riemann manifold（n≥2）,endowed with the C1 norm ‖X‖1.Write θ（X）for the numberof con...
关键词：CONTRACTIBLE periodic orbit (η d)-contractibility (η d)-sequence HYPERBOLIC SINGULARITY ERGODIC unstable manifold standard system of differential equations (*)-orbital stability 
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