推广的(0,p(D))整插值

研究了等距结点上的整插值问题,用解微分方程的方法,给出了它在Bσ2中有唯一解的充要条件和插值函数的明显表达式。     

具有n-1个零元的n阶lower hessenberg(0,1)矩阵的最大行列式

本文讨论n阶lowerhessenberg（0，1）矩阵。称矩阵的主对角线之上第一条对角线以下的零元素为零元。用Mn表示最多包含n-1个零元且每列的零元最多有一个的n阶lowerhessenberg（0，1）矩阵所组成的集合（以下简称Mn—矩阵）。取En＝（eij）nxn，其中eij＝即En是一个主对角线之下的第一条对角线的元素为零，其余元素均为1的lowerhessenberg（0，1）矩阵，则对于任意给出的A∈Mn，必有detA≤detEn。     

2+1维Broer-Kaup方程推广的Painlevé非标准截断展开和精确解

利用基于Painleve奇性分析方法的Pickering的非标准截断展开方法,并借助于Maple软件,得到了一个2+1维Broer-Kaup方程的一些孤子解.     

不变积和式的性质与应用

不变积和式(permanent)在组合数学特别是图论中占有重要的位置，一直受到人们的关注，由于计算它的值比行列式(determinant)困难得多，其应用受到一定的限制，本采用‘0置1’等算法，对一类0—1矩阵作了讨论，并得到若干结果。     

贸易与社会规制分析(下)--以GATT/WTO的规制措施为中心

社会规制所涉及的事项,如直接与国际贸易相关联的问题,正尝试着依据国际标准加以调整和统合;尽管存着第一个特点,但在社会规制的设定等问题上,有着应当尊重主权国家的政策·权限的趋势;根据社会规制采取可行的贸易限制措施的界限,从维护自由贸易秩序的观点,依据现行规定实施严格的限制.     

迎接“入世”挑战 发展江西地方经济

江西作为一个落后的农业大省,“入世”给其带来巨大挑战的同时也蕴藏着巨大机遇。只有抓住“入世”良机,大力改革江西财政,发展江西经济,才能最终摘掉贫穷落后省份的帽子。     

Pascal’s and Tabarrok’s Wagers

In a recent paper A. Tabarrok [Believe in Pascal’s Wager? Have I Got a Deal for You!, Theory and Decision 48, 123--128, 2000] argued that a believer who accepts Pascal’s Wager should in addition accept payment of any given fee in return for a given increase in the probability of reaching God. However the conclusion is obtained from manipulations of infinities which are not valid in an expected utility model. In this note, an alternative model is formulated in which Tabarrok’s conclusion can be obtained.     

Hybrid Bayesian inference on HIV viral dynamic models

Modelling of HIV dynamics in AIDS research has greatly improved our understanding of the pathogenesis of HIV-1 infection and guided for the treatment of AIDS patients and evaluation of antiretroviral therapies. Some of the model parameters may have practical meanings with prior knowledge available, but others might not have prior knowledge. Incorporating priors can improve the statistical inference. Although there have been extensive Bayesian and frequentist estimation methods for the viral dynamic models, little work has been done on making simultaneous inference about the Bayesian and frequentist parameters. In this article, we propose a hybrid Bayesian inference approach for viral dynamic nonlinear mixed-effects models using the Bayesian frequentist hybrid theory developed in Yuan [Bayesian frequentist hybrid inference, Ann. Statist. 37 (2009), pp. 2458–2501]. Compared with frequentist inference in a real example and two simulation examples, the hybrid Bayesian approach is able to improve the inference accuracy without compromising the computational load.     

补充医疗保险的障碍期权定价方法及其应用

本文将期权理论引入并应用到医疗保险领域,克服传统损失分布法的局限性,为医疗保险精算提供新颖的分析工具和全新的研究视角。运用供给与需求的一般经济均衡分析将期权定价和精算定价统一于医疗保险精算领域,从精算技术与期权定价整合的视角提出医疗保险精算的供需均衡原理,并利用帕累托最优保险定价公式推导出经典Black-Scholes期权定价模型,缓解期权定价模型在医疗保险领域的应用障碍;利用障碍期权定价思想,标准期权定价模型、棘轮期权定价模型的推导思路,设计和构建含有免赔额、赔偿限额和共付比例的补充医疗保险障碍期权定价模型;最后将理论研究成果应用于我国医疗改革和医疗保险实践,测算补充医疗保险纯保费,丰富我国补充医疗保险定价方法的研究。