比较定理与随机有界性

本文将[2]中的随机有界性及随机终归有界性的结果,推广到条件随机有界性及条件随机终归有界性的情况.文中给出了条件随机有界性、条件随机一致有界性、条件随机终归有界性及条件随机同等终归有界性的定义,这些定义比[5]中给出的定义更细致、更一般,并且是常微分方程中相应的定义的自然推广.文中在比较定理的基础上,建立了条件随机有界性、条件随机一致有界性、条件随机终归有界性及条件随机同等终归有界性的比较准则,并给出了一个随机同等终归有界的例子.我们的结果推广了[4]中有界性方面的结果.     

非倍测度条件下由Marcinkiewicz积分与RBMO函数生成的交换子在Herz空间中的有界性

本文研究了非倍测度条件下的一类由Marcinkiewica积分与RBMO函数生成交换子的有界性.通过Marcinkiewica积分及该交换子在Lebesgue空间中的有界性,得到了此交换子在Herz空间中的有界性.     

一类分数次次线性算子及其交换子在齐型空间上的弱Morrey-Herz空间上的有界性

本文研究了一类次线性算子及其交换子在齐型空间上的弱有界性的问题.利用齐型空间的基本性质以及给出的一类次线性算子及其分别与BMO函数,Lipschitz函数生成的交换子在L~p(X)上的弱有界性,证明了其在齐型空间上Morrey-Herz空间中的弱有界性.推广了该类算子在Morrey-Herz空间中的强有界性这一结果.     

一类时变非线性系统的一致有界性的注记

主要研究带干扰的广义齐次系统的一致有界和一致最终有界性 ,证明了当干扰项满足一致有界及Lp 可积时系统的一致有界性及一致最终有界性 ,本质推广了最近相关文献中的有关系统一致有界性的结果 .     

Heisenberg型群上的仿积算子

首先给出了Heisenberg型群上一类仿积算子的定义,研究了该算子的L~2→L~2有界性.其次探讨了Heisenberg型群上的Calderon-Zygmund算子,包括该算子的L~p→L~p有界性,L~1→L~(1,∞)有界性以及H~1→L~1有界性.最后证明了仿积算子也是Calderon-Zygmund算子,同时还证明了仿积算子的一些其它重要性质.     

一类Schrödinger型算子在关于非负位势的变指数Morrey空间上的有界性

本文考虑了一类Schrödinger型算子和其交换子的有界性问题.利用其在Lp空有界性间上的,获得了一类Schrödinger型算子和其交换子在变指数Morrey空间上的有界性.     

带Hrmander型核的单边奇异积分算子的加权不等式

研究带Hrmander型核的单边奇异积分算子T⁺的加权有界性.首先利用Coifman和Fefferman的好λ不等式给出T+的加权有界性.首先利用Coifman和Fefferman的好λ不等式给出T⁺加权L+加权L^p(1+的加权弱(1,1)有界性.特别地,我们证明上述加权有界性结论是最佳的.     

一类Schrdinger型算子在关于非负位势的变指数Morrey空间上的有界性（英文）

本文考虑了一类Schr?dinger型算子和其交换子的有界性问题.利用其在L~p空有界性间上的,获得了一类Schr?dinger型算子和其交换子在变指数Morrey空间上的有界性.     

齐次Morrey-Herz空间上交换子的有界性

本文研究了高阶交换子的有界性, 利用截断算子方法和函数分解技术, 在齐次Morrey-Herz空间上, 得到了由次线性算子与BMO函数生成的高阶交换子的有界性以及卷积类算子高阶交换子的有界性.     

一类粗糙奇异积分的加权Triebel-Lizorkin有界性

本文研究了一类粗糙奇异积分算子的加权Triebel-Lizorkin有界性.对核函数Ω∈Llog L(Sn-1)建立了径向权函数的加权有界性;而对于核函数Ω∈Lr(Sn-1),1相似文献   

一类由概率分布生成的新度量

主要得到了一类由概率分布生成的新度量.以信息理论中的重要概念-相对熵为基础,对前人文章中的重要结论进行推广,通过利用改进的初等方法在离散的可测空间中得到了这类新度量,并且证明了得到的新度量成立的充要条件.由此再将这类新度量推广到连续的可测空间中,得到了同样的结果.最后讨论了新度量的最值问题.     

关于Michael选择问题

本文得到一个新的逼近选择定理及一个新的连续选择定理.作为这个新的连续选择定理的应用,我们给出一个新的不动点定理和一个新的重合定理(见文[1-27]).     

新能源、化石能源和高科技公司股价动态相依结构研究

将我国新能源、化石能源和高科技产业纳入同一分析框架,采用因果关系检验、时变copula模型、滚动窗口R藤copula模型研究了三者股价动态相依结构,结果表明:新能源与高科技产业的联动性超过了能源产业内部的联动性,在投资者视角中新能源产业具备较强的高科技属性;新能源与高科技产业的联动性呈下降趋势;新能源与高科技产业的尾部相关系数波动较大,新能源产业的高科技属性对扶持政策的变动较为敏感;新能源产业对高科技产业有长期、稳定的引领作用,而高科技产业仅在特定时期是新能源产业的格兰杰原因,这对“新能源产业的兴衰很大程度依赖于特定科技的发展”这一传统观点提出了质疑。     

A new technique of integral representations in Cn

A new technique of integral representations in Cn, which is different from the well-known Henkin technique, is given. By means of this new technique, a new integral formula for smooth functions and a new integral representation of solutions of the -equations on strictly pseudoconvex domains in Cn are obtained. These new formulas are simpler than the classical ones, especially the solutions of the -equations admit simple uniform estimates. Moreover, this new technique can be further applied to arbitrary bounded domains in Cn so that all corresponding formulas are simplified.     

技术不确定环境下新产品策略的设计应用

技术的动态发展和企业间的竞争对企业新产品策略有很大影响,直接决定新产品的引进周期。本文在产业技术动态变化的随机环境下构建随机动态规划模型,关注产业技术进步、投资成本和产品市场竞争等影响因素,探讨企业进行新产品引进的周期选择,对新产品引进的周期和质量决策进行方法设计和应用举例。利用随机动态规划模型得出新产品引进的最优时间周期,用算例分析技术进步和产品研发成本对企业引进周期策略的影响,采取策略迭代的方法进行求解,发现技术进步较快时企业的新产品引进步伐也较快,研发成本的提高使企业的新产品引入步伐降低。     

The equivalence of Side-Angle-Side and Side-Angle-Angle in the absolute plane

Following the approach of G.D. Birkhoff, we develop a new axiom system for a continuous absolute plane. In this new axiom system we remove Side-Angle-Side as an axiom and replace it with Side-Angle-Angle as a new axiom. We prove that the new axiom system is also a continuous absolute plane, and in particular, that Side-Angle-Side holds in the new axiom system. In addition, we give new proofs of well known results. These new proofs do not depend on Side-Angle-Side, but instead use Side-Angle-Angle.     

Understanding the impacts of product knowledge and product type on the accuracy of intentions-based new product predictions

New product development involves several critical decisions. A key decision making area in new product development is the evaluation of the viability and the market potentials of a new product. In the absence of any relevant historical data, companies ask the potential buyers of their products about their intentions to buy those products when assessing their viability. Despite the popularity of the use of behavioral intentions in predicting the market acceptance of new product ideas, both survey and empirical studies suggest that the accuracy of such predictions is usually very low. Although earlier case-based studies suggest that a number of factors can affect the quality of new product decisions, it is still empirically unclear how product knowledge and the type of new products might impact the predictive accuracy of intentions-based new product forecasting. This study utilized a longitudinal research design and empirically tested the hypotheses across two new products. The study first collected purchase intentions data about the new products. Second, it collected subsequent actual purchase data about the new products. The results of series of hierarchical regression analyses comparing the initial purchase intentions and subsequent actual behaviors showed that while product knowledge is positively related to the predictive accuracy and consistency of intentions-based new product forecasting, product type is negatively related to them.     

Supply chain dynamic configuration as a result of new product development

This study considers supply chain network configuration in an innovative environment while the new product development (NPD) will affect the supply chain configuration (SCC). The time of new product introduction has a significant effect on the market performance while it has an effect on the supply chain configuration. Supplier integration into the new product introduction is the key parameter for successfully new product introduction, which may contribute to supply chain reconfiguration. Consequently By considering the new product development concept, we may face with dynamic supply chain configuration during a planning horizontal time. In this study, a new model is presented to consider the dynamic configuration of a supply chain by developing new products. In the proposed model, the dynamic configuration of a supply chain and the new product launching time is optimized simultaneously. The proposed model considers production, sales and transportation planning for the entire supply chain in order to achieve an integrative and efficient supply as well. Then some numerical analyses have been done to show the applicability of the proposed model. The results show that the new product development has a significant effect on the configuration of supply chain.     

关于《中国城镇新增用地供给量的预测及其修正方法》的新模型建立及其比较

本文对文献［１］中的数据重新以时间序列为变量建立回归模型,通过比较新老模型的检验效果,显示新模型的优良性．又结合新模型重新给出了更为合理的新增用地控制方法     

拟阵的可去圈

本首先用拟阵语言将图论的新概念定义成了拟阵的新概念，然后用拟阵语言将Goddyn和Heuevl所得的图论上的新结果平移成了拟阵的新结果，最后用拟阵的方法对它们给出了新的证明。