单位多圆盘上加权Bergman空间上的紧算子

记Aφ^p（D^n）（p〉1）为单位多圆盘D^n上P次可积解析函数全体组成的加权Bergman空间．该文利用多圆盘函数论及Schur估计，研究了加权Bergman空间Aφ^p（D^n）上有界算子S满足一定可积条件时的紧性刻画，证明了S为紧的当且仅当其Berezin变换在多圆盘的边界趋于零．     

校园用户识别在电信领域的优化方案

在全业务市场竞争的背景下,校园市场将成为各大运营商争夺的焦点。运营商需要及时、准确地了解学生客户的状态和发展趋势。本文针对现有校园用户识别模型提出了优化方案,以便有针对性制定营销方案、促进校园市场的发展。     

探讨模糊算子在遥感图像特征提取中的应用

本文主要阐述了模糊算子在遥感图像特征提取中的一般方法以及利用模糊算子对数据进行融合的应用等内容。     

A functional approach to pricing complex barrier options

In this article, a new method for pricing contingent claims, which is particularly well suited for options with complex barrier and volatility structures, is introduced. The approach is based on a high-precision approximation of the Feynman–Kac equation with distributed approximating functionals. The method is particularly well suited for long maturity valuation problems, and it is shown to be faster and more accurate than conventional solution schemes.     

基于神经网络的专家预测方法研究

针对复杂预测问题的需求,基于神经网络的思想对专家预测方法进行了探讨。首先,在神经元模型的基础上提出了专家预测模型。然后,根据专家预测模型的需要对专家给出的模糊语言判断信息的合成进行了研究,并给出了具体的量化方法。最后,为提高预测方法的精度,提出了一种专家权值的调整方法;算例表明,该方法具有简单实用的特点。     

上市公司股权激励影响公司价值的实证分析

建立健全经营者股权激励机制是深化国有企业改革和增强企业活力的重要途径之一,经营者持股、国家股股东(国有资本注资持股)和流通股股东(中小股东持股)具有不同的股权激励效果。其中经营者持股具有最强的激励功能,有利于改善公司绩效和提升公司价值;委托代理关系下的国有资本容易出现投资者主体缺乏保护机制的问题,进而扩大委托代理关系的距离以及信息的不对称程度,引发企业效率低下;在流通股股东的激励环境下,股权流动性分裂从根本上损害了上市公司股东之间利益的一致性,可能导致经营者持股和国家股的激励减弱。在总结前人研究成果的基础上,选择制造业机械、设备、仪表次类上市公司为研究样本,从实证的角度对上述问题进行了探索。     

油田开发调整方案的多指标群体综合评价方法及应用

本文结合油田开发调整方案优选的多指标特征及群体评价特征,提出了一个多指标群体综合评价方法。该方法在序关系分析法的基础上,通过定义基于向量的诱导有序加权平均(V-IOWA)算子来确定专家群体的指标权重,进而得到专家群体的方案综合评价结果。最后,给出一个应用实例以说明该方法的有效性。     

自然垄断行业不对称规制研究

不对称规制是规制机构对自然垄断行业处于不同市场条件下的经营者予以区别对待的规制。实施不对称规制的经济学理论依据是有效竞争理论,法理依据是公共利益理论和实质公平理论,前提条件是不对称竞争的存在。主导经营者的认定标准主要有市场份额及竞争者数量、控制关键的网络系统资源、市场进入壁垒、利润水平和对竞争者的影响力。不对称规制与反垄断规制均为自然垄断行业的规制手段,两者既有联系又有区别,需要采取措施予以协调。     

序群上Fredholm Toeplitz算子的特征

利用阿贝尔群G到实数群R的同态映射λ,给出了序群上Toeplitz算子是Fredholm的一个特征.     

Systematic approach to incorporate human factors into a process plant design

Despite the increasing number of accidents in process industry caused by human error, there are still too few efforts devoted to this area. This is mainly caused by people's tendency to overestimate human's capability in interacting with their working environment and moreover by the unavailability of reliable analysis methods. Because of the current lack of adequate methods, human factors (HF) analysis is not widely performed in process industry. Some HF techniques developed in the process industry were examined regarding their practical applicability and were unfortunately proved to be unsuitable for an elaborate HF analysis. Therefore, a new approach was developed, which provides a systematic way in performing a qualitative HF analysis to achieve a safer operation and decrease the number of human failure events. HF consideration during the design of a process plant is the key to minimize accidents caused by human error in process industry. Thus, an approach to incorporate HF into design phase is described in this article, which can help achieving a safer operation as early as possible with minimized costs. © 2009 American Institute of Chemical Engineers Process Saf Prog 2009