Second-order contingent derivatives of set-valued mappings with application to set-valued optimization

In this paper, a family of parameterized set-valued optimization problems, whose constraint set depends on a parameter, are considered. Some calculus rules are obtained for calculating the second-order contingent derivatives of the composition and sum of two set-valued mappings. Then, by using these calculus rules, some results concerning second-order sensitivity analysis are established, and an explicit expression for the second-order contingent derivative of the (weak) perturbation mapping in the set-valued optimization problems is obtained.     

美国废奴文学的代表作--试析《汤姆叔叔的小屋》的文学价值

斯托夫人所著小说《汤姆叔叔的小屋》又译(《汤姆大伯的小屋》、《黑奴呼天录》和《贱民生涯》等)，是美国19世纪中期废奴主义文学的代表作。研究认为，《汤姆叔叔的小屋》这部小说不仅具有很高的历史地位，而且在美国文学舞台上也具有很高的价值。     

Multidimensional subdiffusion model: Arbitrage-free market

To capture the subdiffusive characteristics of financial markets, the subordinated process, directed by the inverse α-stale subordinator S_α(t) for 0 < α <1, has been employed as the model of asset prices. In this article, we introduce a multidimensional subdiffusion model that has a bond and K correlated stocks. The stock price process is a multidimensional subdiffusion process directed by the inverse α-stable subordinator. This model describes the period of stagnation for each stock and the behavior of the dependency between multiple stocks. Moreover, we derive the multidimensional fractional backward Kolmogorov equation for the subordinated process by Laplace transform technique. Finally, using martingale approach, we prove that the multidimensional subdiffusion model is arbitrage-free, and also gives an arbitrage-free pricing rule for contingent claims associated with the martingale measure.     

基于SEM的民航安全的组织因素研究

组织因素是影响飞行安全的重要因素,研究和探索组织因素的基本构成和对飞行安全的作用机理及途径对改进飞行安全具有重要意义。首先就国内外对影响民航安全的组织因素研究进行了简单的概括,并对影响民航安全的组织因素进行了合理的界定,在前人研究的基础上找出了对民航安全有显著影响的组织因素,构建了组织因素影响安全的初始理论模型。在此基础上,建立了组织因素对民航安全影响的结构方程模型,随后使用AMOS 17.0统计软件对模型进行修正和检验,研究了各因素与其指标的关系及各因素对安全的影响程度,最后讨论了因子与指标及各因子之间的关系。所建立的组织因素对民航安全影响的结构方程模型及其建立方法为国内民航组织因素的研究提供了一条新的思路和途径。     

“双师型”教师队伍建设与高职院校专业群的构建

“双师型”教师队伍建设是高职教育教学的必然要求。从高职专业群构建的视角,在“双师型”实质内涵分析基础上,提出建设“双师型”教师队伍的途径。     

中高级公务员权威维护

当前中高级公务员权威衰减既有转轨时期特殊因素,也有更深层次体制弊端。本文分析了其原因,还告诉大家问什么要这么做,并提出提高中高级公务员威信要采取新的措施。     

两种弹塑性梁单元在桥梁地震响应分析中的研究比较

作为抗震结构设计的桥梁,在大中震作用下,按延性构件设计的桥墩通常进入了塑性工作阶段。此时对桥墩弹塑性行为的描述有基于实体的微观模型和基于弹塑性梁单元的宏观模型。在这两大类模型中后者不但概念清晰,分析时间远远低于前者,其结果在某些程度上甚至比前者更准确,目前在土木工程领域的应用也越来越多。本文从两种弹塑性梁单元入手,对某桥进行了全桥动力弹塑性时程分析,并在此基础上提出了一种简单可行的基于纤维截面分析结果的集中铰弹塑性梁单元的定义方法。     

The Domination for Evaluation of the Contingent Claims by Nonlinear Generator

In this paper,through applying the result of backward stochastic differential equations,it investigates a domination for pricing of the contingent claims by the use of nonlinear infinitesimal generator of process X. This domination provides a guide for valuing the price of the position on the financial market.     

集值优化问题的二阶最优性条件

本文提出了集值映射的一种二阶导数,并讨论了其相关性质.运用此二阶导数以及二阶相依导数,作者建立了实赋范空间中集值优化问题的二阶必要最优性条件;同时,在有限维赋范空间中,建立了集值优化问题的二阶充分最优性条件.