NLP问题解的二阶条件和Lipschitz连续性

假定所讨论的数学规划问题其函数连续可微且有Lipschitz连续的梯度函数运用Clarke广义Jacobi矩阵,给出了非线性规划(NLP)问题解的二阶最优性必要条件二阶最优性充分条件及非线性参数规划问题解的Lipschitz连续性质,推广了王金德Fiacco的主要结果。     

世界与中国远度跳跃项目最新发展特征概析

本文通过对1980-1990年世界与中国远度跳跃项目前10名成绩的统计分析，提示了最近10年世界与中国远度跳跃项目的发展规律和动态发展特征。     

诱导增强吸收介质表面的反射双稳性

分析了诱导增强吸收介质表面反射率的非线性性质,指出了一种简单情况下也存在双稳状态的可能性,由此提出了一种新的、并且是极为简单的光学双稳器件原理.     

半线性二阶严格双曲拟微分方程的光滑传播

本文讨论半线性严格双曲拟微分方程的 H~传播理论,得到了这种方程的(粗略地)强度为3_8—n的微局部正则性将沿零次特征传播.     

泰安市“三资”企业发展战略构想

泰安市作为新兴的城市，如何利用自身资源优势，如何确定“三资”企业合理的发展速度、规模，确定什么样的产业结构才能更好地外引内联避免盲目上项；对于“三资”企业采用什么样的管理机制，并及时地对“三资”企业的经营实行宏观调控，与泰安市的经济发展相适应，使整体经济效益最好？本文就此作了初步研究，以期对指导泰安市“三资”企业发展有所裨益。     

集中建站最佳站址的充要条件

本文给出了集中建站最佳站址的充要条件,根据这个充要条件还提出了关于最佳点的若干判别定理。     

严有效解集的连通性

文中介绍了严有效解的概念,研究了锥—连续拟凸映射的严有效解的连通性。     

强严格凸和中点局部一致凸

证明了Ｂａｎａｃｈ空间Ｘ是局部一致非方的当且仅当对任意ｘ∈Ｓ（Ｘ）,都有ｄＸ（ｘ,１）＞０;Ｘ是强严格凸的当且仅当对任意ｘ∈Ｓ（Ｘ）,ｙｎ∈Ｓ（Ｘ）和α∈Ｒ,若‖ｘ＋αｙｎ‖→１和‖ｘ－αｙｎ‖→１,则α＝０;并证明了Ｘ是强严格凸的充要条件为Ｘ是中点局部一致凸的     

Increased competence as a process of surviving in shared information spaces

Connections between people and groups are growing more frequent and more intense. Cultural events, changes in laws, activities of organizations, and new ideas elsewhere affect one's own decisions and activities more and more. This development has strong implications for the way people can increase their competence and how they can affect what happens to their own community or geographical area. In this paper consequences are considered for a special type of tool, the so-called problem language, that appears to be intimately entwined with many other tools in operations research, cybernetics, and systems research. The language appears most adequate in situations where boundaries can be found such that external events have minimal impact on what happens inside those boundaries. The change in connectivity makes finding such boundaries less and less probable. This suggests looking for another language, to structure the processes necessary when one intends to overcome difficulties that cannot be represented and solved as problems. A language of access is proposed, derived partly from studies in areas where it has never been possible to find boundaries as indicated. Within the framework of this language one can derive methods of externalization that imply speeding up flows of information in a shared workspace or shared information space. Their implementation is greatly facilitated—or even made possible at all—by recent developments in information technology.