Oil Price Fluctuation：Factors Analysis and Macro-Economics Influence ——A Research Based on Bayesian Method

对中国这样一个石油消费量和石油进口依存度均不断增加的发展中大国而言，2002年以来国际油价持续上涨和大幅波动对中国宏观经济的影响正在逐步显现。因此，探讨国际油价波动的原因，评估国际油价波动对我国宏观经济的影响就具有很强的现实指导意义。在研究方法上，相对传统的向量自回归模型(VectorAutoregressionModel，VAR)而言，加入贝叶斯先验信息(BayesianPrior)所构建的贝叶斯向量自回归模型(BVAR)能较好地克服过度拟合的问题，取得较好的预测效果。鉴此，本文在分析国际油价波动影响因素的基础上，采用贝叶斯向量误差修正模型实证分析各因素变化对油价变化的影响程度和国际油价波动...China's oil consumptions and import dependency increase quickly every year. From 2002,the world oil price raises rapidly. The influence of high oil price on China's economy become more and more larger. Therefore, exploring the reasons which influence oil price fluctuation and evaluating the influence of oil price fluctuation on China's economy is a practical significative research. About r...学位：经济学博士院系专业：经济学院财政金融系_金融工程学号：B20044201

The Analysis of Sectoral Output and Household Income Multipliers Based on Social Accounting Matrix of Xiamen City

基于厦门市2002年投入产出表及其他相关数据,笔者构建了厦门市2002年的宏观社会核算矩阵,并对居民账户进行了细分。在此基础上,利用基于社会核算矩阵的SAM乘数模型,本文考察了各类产业在外生冲击下的产出效应和居民收入效应,并分析了外生冲击及转移支付对居民收入分配结构的影响。结果显示,产出乘数和居民收入乘数较高的行业分别是那些与其他行业具有较高关联度的行业和对社会就业带动作用较大的劳动密集型行业;厦门市当前经济的结构和转移分配都有利于改善当前居民收入差距过大的现状,但前者的效应不大。Based on the input-output table of Xiamen city in 2002 and other related data,this paper constructs a social accounting matrix(SAM).In this SAM,we classify the urban households' accounts by their income levels.Further,we study the output and household income impacts of each sector under exogenous shocks using SAM multiplier model,and also analyze the impacts of exogenous shock and transfer payment on the household income distribution structure.The results show that the sectors with higher output and household income multipliers are those which have higher association with others or labor-density sectors;the Xiamen city's current economic structure and transfer payment mode are in favor of improving the unequal household income situation at present.However,the former's effect is not large.国家自然科学基金资助项目(项目批准号:70671086

零理想边界Heins端上椭圆型议程Δu=Pu的拟Picard原理

考虑非紧镶边Riemann曲面〖ＡＫΩ－〗=Ω∪Ω,它的边界 Ω紧致且由有限条互不相交的解析Jordan曲线组成,称Ω为素端. 设Ω的理想边界调和测度为0,而密度P是定义在〖ＡＫΩ－〗上非负局部 Holder连续的二重共变量.用〖ＷＴＨＴ〗Ｆ〖ＷＴＢＸ〗 表示方程△ｕ＝Ｐｕ在Ω取值0的非负连续解全体.对Ω的 KerekjatoStoIlow意义下的理想边界β的任何点ζ,本文通过定义 〖ＷＴＨＴ〗Ｆ→Ｆ〖ＷＴＢＸ〗的线性算子πζ,引入〖ＷＴＨＴ〗Ｆ的子函数 族〖ＷＴＨＴ〗Ｈ〖ＷＴＢＸ〗ζ＝｛ｕ∈〖ＷＴＨＴ〗Ｆ〖ＷＴＢＸ〗｜πζ （ｕ）≡...学位：理学硕士院系专业：数学系_基础数学学号：19972300

NONNEGATIVE SOLUTIONS OF SOME KIND OF ELLIPTIC EQUATIONS ON ENDS WITH NULL IDEAL BOUNDARY

考虑具有零理想边界的非紧镶边Ｒｉｅｍａｎｎ曲面Ω＝Ω∪　Ω及其上的Ｄｉｒｉｃｈｌｅｔ积分有限的非负局部Ｈｏｌｄｅｒ连续的二重共变量Ｐ．用Ｆ表示方程上Δｕ＝Ｐｕ在 Ω取极限值０的非负连续解全体．本文讨论拟Ｐｉｃａｒｄ原理成立的充要条件并证明：若Ω的每一理想边界点都有端邻域满足广义Ｈｅｉｎｓ条件，则Ｍａｒｔｉｎ函数全体所成之集是Ｆ中的极小正解全体所支撑的子半线性空间Ｐ的一个Ｈａｍｅｌ基，而且Ｆ可表示为与Ｐ相关的直和形式．Consider a non-compact bordered Riemann surface Ω = Ω∪ Ω with compact border Ω and null ideal boundary in Kerekjato-Stoilow' sense. Let F be the cone of all the nonnegative solutions of the elliptic equation Δu = Pu, which vanish on Ω and are continuous on Ω, where the density P is a nonnegative locally Holder continuous covariant bivector on Ω with a finite Dirichlet integral. In this article, the authors give a necessary and sufficient condition that the Picard priciple is valid. Moreover, it is shown that if each ideal boundary point of Ω satisfies so called generalized Heins' conditions, then the collection of all Martin functions on Ω is a Hamel base of the sub-cone P of F, spanned by the extremal positive solutions of the equation, and F is a direct sum with respect to P.国家自然科学基金（No19871068）资助的项目

Study on the synthesis of sulfenylindoles with Dess -Martin periodinane - promoted

目的建立简单、高效制备吲哚硫醚类化合物的方法。方法以Dess- Martin试剂(DMP)为促进剂,异丙醇为溶剂,在室温下反应15 min,促进硫醇和吲哚反应来制备吲哚硫醚类化合物。结果和讨论合成了一系列吲哚硫醚类化合物,结构经~1HNMR、~(13)CNMR和HR- MS鉴定。该反应具有原子经济性好、反应条件温和、反应时间短等优点