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云南建设我国通向东南亚、南亚国际大通道的主要制约因素分析

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思想战线 2001年第5期27卷 30-34页

作者：谢洪忠张洪云南财贸学院统计与信息学院云南昆明650221

云南建设国际大通道的思路一经提出 ,许多专家、学者从不同角度论述了通道建设的必要性和可行性 ,从各方面说明了通道建设的意义和作用。实际上 ,云南建设我国通向东南亚、南亚国际大通道还存在许多制约因素 ,诸如经济增长对交通运输的... 详细信息

云南建设国际大通道的思路一经提出 ,许多专家、学者从不同角度论述了通道建设的必要性和可行性 ,从各方面说明了通道建设的意义和作用。实际上 ,云南建设我国通向东南亚、南亚国际大通道还存在许多制约因素 ,诸如经济增长对交通运输的需求、产业结构的变化、城市化水平、区域间的经济社会联系以及对外开放程度等。只有在分析清楚这些制约因素 ,并在具体实施中逐步解决相关的问题 ,才可能把国际大通道的建设扎扎实实地推向前进。

关键词：国际大通道运输需求经济增长对外开放

On the Strong Law of Large Numbers for Non-Independent B-Valued Random Variables

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Wuhan university Journal of Natural Sciences 2004年第1期9卷 13-17页

作者： GanShi-xin schoolofmathematicsandstatistics WuhanUniversityWuhan430072HubeiChina

This paper investigates some conditions which imply the strong laws of large numbers for Banach space valued random variable sequences. Some generalizations of the Marcinkiewicz-Zygmund theorem and the Hoffmann-J?rgensen and Pisier theorem are obtained. Key words strong law of large numbers - Banach space valued random variable sequence - p-smoothable Banach space CLC number O 211.4.- O 211.6 Foundation item: Supported by the National Natural Science Foundation of china (10071058)Biography: Gan Shi-xin (1939-), male, Professor, research direction: martingale theory, probability limiting theory and Banach space geometry theory.

关键词： strong law of large numbers Banach space valued random variable sequence p-smoothable Banach space

MAXIMUM INFORMATION AND OPTIMUM ESTIMATING FUNCTION

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Chinese Annals of mathematics,Series B 2003年第3期24卷 349-358页

作者： LIN Lu Department of statistics, school of Mathematical Sciences, Nankai university, Tianjin 300071, china. Nankai Univ Sch Math Sci Dept Stat Tianjin 300071 Peoples R China

In order to construct estimating functions in some parametric models, this paper introducestwo classes of information matrices. Some necessary and sufficient conditions for the informationmatrices achieving their upper bounds are given. For the problem of estimating the median,some optimum estimating functions based on the information matrices are acquired. Undersome regularity conditions, an approach to carrying out the best basis function is introduced. Innonlinear regression models, an optimum estimating function based on the information matricesis obtained. Some examples are given to illustrate the results. Finally, the concept of optimumestimating function and the methods of constructing optimum estimating function are developedin more general statistical models.

关键词： Quasi (pseudo) Fisher information Estimating function Quasi score Nonlinear regression model Median regression model

Existence of Positive Solutions for Systems of Nonlinear Second-Order Differential Equations on the Half Line in a Banach Space

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Journal of Mathematical Research and Exposition 2011年第4期31卷 587-604页

作者： Xing Qiu ZHANG 1,2 1.school of mathematics and statistics,Huazhong university of Science and Technology,Hubei 4.0074.P.R.{4. 2.school of mathematics,Liaocheng university,Shandong 252059,P.R.{4. school of mathematics and statistics Huazhong University of Science and Technology Shandong 252059

In this paper, the cone theory and MSnch fixed point theorem combined with the monotone iterative technique are used to investigate the positive solutions for a class of systems of nonlinear singular differential equations with multi-point boundary value conditions on the half line in a Banach space. The conditions for the existence of positive solutions are formulated. In addition, an explicit iterative approximation of the solution is also derived.

关键词： systems of singular differential equations cone and ordering positive solutions Monch fixed point theorem measure of non-compactness.

New results for exponential synchronization of linearly coupled ordinary differential systems

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Chinese Physics B 2017年第5期26卷 82-89页

作者：童评陈士华 school of mathematics and statistics Wuhan University Wuhan 430072 China

This paper investigates the exponential synchronization of linearly coupled ordinary differential systems. The intrinsic nonlinear dynamics may not satisfy the QUAD condition or weak-QUAD condition. First, it gives a new method to analyze the exponential synchronization of the systems. Second, two theorems and their corollaries are proposed for the local or global exponential synchronization of the coupled systems. Finally, an application to the linearly coupled Hopfield neural networks and several simulations are provided for verifying the effectiveness of the theoretical results.

关键词： ordinary exponential linearly synchronized intrinsic satisfy symmetric infinitely manifold proof

MODERATE DEVIATIONS AND LARGEDE VIATIONS FOR A TEST OF SYMMETRY BASED ON KERNEL DENSITY ESTIMATOR

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Acta Mathematica Scientia 2008年第3期28卷 665-674页

作者：何晓霞高付清 school of mathematics and statistics Wuhan University

Let fn be a non-parametric kernel density estimator based on a kernel function K. and a sequence of independent and identically distributed random variables taking values in R. The goal of this article is to prove mod... 详细信息

关键词： Symmetry test kernel estimator moderate deviations large deviations

Revisit of Sheppard corrections in linear regression

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Science china mathematics 2010年第6期53卷 1435-1451页

作者： LIU TianQing1,ZHANG BaoXue1,HU GuoRong1 & BAI ZhiDong1,2,1Key Laboratory for Applied statistics of MOE and school of mathematics and statistics,Northeast Normal {4.,Changchun 130024.china 2Department of statistics and Applied Probability,National {4. of Singapore,Singapore 11754.,Singapore 1. Key Laboratory for Applied statistics of MOE and school of mathematics and statistics Northeast Normal University Changchun 130024 China2. Department of Statistics and Applied Probability National University of Singapore Singapore 117543 Singapore

Dempster and Rubin(D&R) in their JRSSB paper considered the statistical error caused by data rounding in a linear regression model and compared the Sheppard correction,BRB correction and the ordinary LSE by *** asymptotic results when the rounding scale tends to 0 were also *** a previous research,we found that the ordinary sample variance of rounded data from normal populations is always inconsistent while the sample mean of rounded data is consistent if and only if the true mean is a multiple of the half rounding *** the light of these results,in this paper we further investigate the rounding errors in linear *** notice that these results form the basic reasons that the Sheppard corrections perform better than other methods in D&R examples and their conclusion in general cases is *** in which the Sheppard correction works worse than the BRB correction are also ***,we propose a new approach to estimate the parameters,called "two-stage estimator",and establish the consistency and asymptotic normality of the new estimators.

关键词： asymptotic normality consistency linear regression model rounded data two-stage estimates

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加强丽江市高端休闲度假旅游市场开发的研究

生态经济(学术版) 2007年第2期 312-314页

作者：邹再进云南财经大学旅游学院昆明650221

加强高端休闲度假旅游市场的开发,是当今主要旅游目的地改变旅游产品结构,提高旅游经济效益,促进旅游业可持续发展的重要方式之一。丽江市的旅游资源特色、社会人口结构和旅游业发展趋势决定了其加强高端休闲度假旅游市场开发成为必然;... 详细信息

加强高端休闲度假旅游市场的开发,是当今主要旅游目的地改变旅游产品结构,提高旅游经济效益,促进旅游业可持续发展的重要方式之一。丽江市的旅游资源特色、社会人口结构和旅游业发展趋势决定了其加强高端休闲度假旅游市场开发成为必然;同时,丽江市也具有开发这一市场的资源基础、物质保障和市场潜力。因而,文中提出了七大对策与措施,通过利用优势旅游资源开发综合效益好的高端休闲度假旅游市场,为丽江市旅游业的可持续发展开辟新的道路。

关键词：丽江市休闲度假高端市场旅游开发

Evaluation model of venture investment based on fuzzy matter-element method of combined weight

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Journal of Southeast university(English Edition) 2008年第S1期24卷 27-32页

作者： Meng Lin1 Bao Guangping2 Sun Yutao1(1 Department of Economics, Dalian university of Technology, Dalian 116024. china)(2 finance and Taxation school, Northeast finance and Economy university, Dalian 116025, china) Department of Economics Dalian University of Technology Dalian 116024 China finance and Taxation school Northeast Finance and Economy University Dalian 116025 China

An evaluation model of an international venture investment project on the basis of fuzzy matter-element and combined weight methods is introduced. First, the compound fuzzy matter-element of optimal subordinate degree is constructed on the principle of the bigger-more-optimal or the less-more-optimal depending on the actual evaluation indicators, and combined with standard fuzzy matter-element to form a difference-square fuzzy matter-element. Secondly, a combined weight is calculated by both information entropy and the expert grading method. Finally, the compound fuzzy matter-element of Euclidian approach degree by M(·,+)method is constituted and used to classify venture investment projects. Based on the model above, six venture investment projects in a company are evaluated, and the results show that the projects are all good, which is demonstrated by the good income of the projects. Therefore, the coincidence of evaluation results and actual operation status indicates that the model is of great value in practical application.

关键词： combined weights fuzzy matter-element venture investment