QUANTILES OF SUMS AND EXPECTED VALUES OF ORDERED SUMS

Watson & Gordon (1986) investigated the relationship between the quantiles of a sum of independent continuous random variables and the sum of the individual quantiles. In this note some further results are obtained. Also corresponding relationships are developed for the expected values of the order statistics of a sum, and for the sum of the expected values of the individual order statistics.     

论文学语言的媒介性

语言作为文学的媒介与其他艺术门类的媒介相比有它的特殊性:语言是一种文化,文学语言作为媒介不可避免地打上了文化的烙印;语言还是一个抽象的符号体系,它与现实世界相分离,有利于文学深入、广阔地反映社会生活;语言也是文学与日常生活的共同媒介,这既使文学与生活、文学语言与日常语言建立起密切的联系,又促使作家采用某些艺术手段使文学语言在用法上体现出自己的独特性;最终文学语言将传达的内容寓于自身之中,因而文学语言不是单纯的工具,而是工具与本体的统一。     

Weak strategy proofness: The case of nonbinary social choice functions

It is now well known that under some eminently acceptable behavioral rule in comparing various power sets every nonimposed, binary, multivalued social choice mechanism is strategy-proof or oligarchic. Various attempts have been made to resolve the paradox either by relaxing binariness or by weakening the notion of strategy-proofness. By relaxing both binariness and the notion of strategy-proofness this paper shows that the trade-off between weak strategy-proofness and various unacceptable power structures, such as oligarchy or dictatorship, would remain intact.The helpful comments and suggestions of an anonymous referee are gratefully acknowledged.     

论社会主义市场经济条件下的高等教育市场

社会主义市场经济条件下,高等教育是特殊的产业,属于第三产业。高等教育市场是高校与社会进行资源交流的场所,是高校与社会互动的中介。高等教育市场包含人才市场、技术市场、咨询市场、就学市场,它在高教运行机制中具有交换、反馈、激励、调节、配置资源等功能。建立健全高等教育市场,明晰影响高等教育市场供给与需求的因素,对于提高高等教育投资效益,实现高等教育与市场经济的接轨具有重要意义。     

信托合约的性质与功能反思

目前我国信托业的发展存在一些问题和困难,其关键在于对信托的本质功能的认识存在着偏差。从信托合约的角度重新审视信托的本质和基本功能,从而为我国信托业的市场定位和发展方向提供理论依据。     

密码群的一个刻划

本文给出密码群的结构性刻划.     

大学生短跑运动员赛前准备活动与控制

运用问卷调查法、文献资料法和数理统计法,对大学生短跑运动员赛前准备活动进行研究。在此基础上从内容、强度和时间上对准备活动的控制进行探讨,以便通过有效的准备活动调动和激发比赛情绪,创造有利的赛前状态。     

差分跳频信号最佳接收机设计

针对差分跳频技术提出了一种G函数的非二进制卷积编码的等效模型,给出了差分跳频信号的最佳接收机设计方法,研究了维特比硬判决和维特比较判决两种最大似然检测算法,并对在AWGN信道下的两种最大似然检测算法的性能进行了计算机仿真。仿真结果表明,接收机采用最大似然检测算法对于改善系统的性能有明显的作用,对维特比硬判决法的实现方法进行了描述。     

Estimating the First- and Second-Order Parameters of a Heavy-Tailed Distribution

This paper suggests censored maximum likelihood estimators for the first‐ and second‐order parameters of a heavy‐tailed distribution by incorporating the second‐order regular variation into the censored likelihood function. This approach is different from the bias‐reduced maximum likelihood method proposed by Feuerverger and Hall in 1999. The paper derives the joint asymptotic limit for the first‐ and second‐order parameters under a weaker assumption. The paper also demonstrates through a simulation study that the suggested estimator for the first‐order parameter is better than the estimator proposed by Feuerverger and Hall although these two estimators have the same asymptotic variances.     

广义导数及其应用

文章提出了一种广义导数的概念,得到了广义导数的运算法则,以及连续函数的中值定理。