全文获取类型
收费全文 | 117篇 |
免费 | 2篇 |
国内免费 | 9篇 |
专业分类
化学 | 2篇 |
力学 | 2篇 |
综合类 | 5篇 |
数学 | 109篇 |
物理学 | 10篇 |
出版年
2023年 | 2篇 |
2022年 | 2篇 |
2021年 | 2篇 |
2020年 | 2篇 |
2019年 | 5篇 |
2018年 | 2篇 |
2017年 | 1篇 |
2016年 | 1篇 |
2015年 | 1篇 |
2014年 | 3篇 |
2013年 | 1篇 |
2012年 | 1篇 |
2011年 | 4篇 |
2010年 | 4篇 |
2009年 | 6篇 |
2008年 | 4篇 |
2007年 | 3篇 |
2006年 | 5篇 |
2005年 | 7篇 |
2004年 | 7篇 |
2003年 | 6篇 |
2002年 | 11篇 |
2001年 | 6篇 |
2000年 | 5篇 |
1999年 | 4篇 |
1998年 | 4篇 |
1997年 | 6篇 |
1996年 | 5篇 |
1995年 | 1篇 |
1994年 | 1篇 |
1993年 | 2篇 |
1992年 | 4篇 |
1990年 | 3篇 |
1989年 | 2篇 |
1984年 | 2篇 |
1982年 | 2篇 |
1978年 | 1篇 |
排序方式: 共有128条查询结果,搜索用时 0 毫秒
81.
We describe how polynomials with all cycles repelling and connectedJulia set are organized in the boundary of the shift loci accordingto their real laminations. 2000 Mathematics Subject Classification37F20, 37F45. 相似文献
82.
Connectedness of the Solution Sets and Scalarization for Vector Equilibrium Problems 总被引:3,自引:0,他引:3
X. H. Gong 《Journal of Optimization Theory and Applications》2007,133(2):151-161
In this paper, we introduce the concepts of globally efficient solution and cone-Benson efficient solution for a vector equilibrium
problem; we give some scalarization results for Henig efficient solution sets, globally efficient solution sets, weak efficient
solution sets, and cone-Benson efficient solution sets in locally convex spaces. Using the scalarization results, we show
the connectedness and path connectedness of weak efficient solution sets and various proper efficient solution sets of vector
equilibrium problem.
This research was partially supported by the National Natural Science Foundation of China and the Natural Science Foundation
of Jinxing Province, China. 相似文献
83.
84.
马达才 《应用数学与计算数学学报》1997,11(2):68-71
本文介绍了严有效解的概念,并在[1]工作的基础上进一步研究了锥连续拟凸映射的严有效的连通性。 相似文献
85.
无限维空间拟凸映射多目标最优化问题解集的连通性 总被引:10,自引:1,他引:10
本文在一个无限格中引入了拟凸、强拟凸和严格拟凸映射。并在约束集为紧凸条件下,证明了相应的多目标规划问题之有效解集和弱有效解集连通性结果。 相似文献
86.
Yu Han 《Optimization》2016,65(2):357-367
In this paper, we establish the connectedness of the sets of Henig efficient solutions, globally efficient solutions, weak efficient solutions, superefficient solutions and efficient solutions for a class of generalized vector equilibrium problems without the assumptions of monotonicity and compactness. 相似文献
87.
R. -X. Shen 《Acta Mathematica Hungarica》2009,122(3):231-235
This note is devoted to study the preservation of connectedness under the basic operators in generalized topological spaces.
Some characterizations of generalized connectedness are given. As an application, we generalize some results in topological
spaces.
Supported in part by the NSFC (No. 10571151, 10671173). 相似文献
88.
黄土森 《宁波大学学报(理工版)》1998,(4)
证明紧致度量空间的具有Hausdorff度量的闭集空间的紧致性与连通性,并给出连通的紧致度量空间的连通分支与相应的闭集空间的连通分支之间关系的一个条件. 相似文献
89.
The purpose of this research is to compare the risk transfer structure in Central and Eastern European and Western European stock markets during the 2007–2009 financial crisis and the COVID-19 pandemic. Similar to the global financial crisis (GFC), the spread of coronavirus (COVID-19) created a significant level of risk, causing investors to suffer losses in a very short period of time. We use a variety of methods, including nonstandard like mutual information and transfer entropy. The results that we obtained indicate that there are significant nonlinear correlations in the capital markets that can be practically applied for investment portfolio optimization. From an investor perspective, our findings suggest that in the wake of global crisis and pandemic outbreak, the benefits of diversification will be limited by the transfer of funds between developed and developing country markets. Our study provides an insight into the risk transfer theory in developed and emerging markets as well as a cutting-edge methodology designed for analyzing the connectedness of markets. We contribute to the studies which have examined the different stock markets’ response to different turbulences. The study confirms that specific market effects can still play a significant role because of the interconnection of different sectors of the global economy. 相似文献
90.
New Saddle Point Theorem Beyond Topological Vector Spaces 总被引:1,自引:0,他引:1
The purpose of this note is to prove a new topological saddle-point theorem, which in turn includes classical saddle-point theorems such as the Sion minimax theorem and others in topological vector spaces as special cases. 相似文献