伪复空型的分解与分类

主要研究具有平行ｆ－结构的伪复空型的分解及分类问题。     

弱几乎正规空间

Ｍ．Ｋ．ＳｉｎｙａｌａｎｄＳ．Ｐ．Ａｒｙａ在［１］中定义了几乎正规空间．本文引进了弱几乎正规空间，并指出它是几乎正规空间的一般化，讨论了弱几乎正规空间的性质以及这类空间与其它空间之间的关系．     

A state space approach to forecasting the final vintage of revised data with an application to the index of industrial production

There is considerable interest in the index of industrial production (IIP) as an indicator of the state of the UK's industrial base and, more generally, as a leading economic indicator. However, this index, in common with a number of key macroeconomic time series, is subject to revision as more information becomes available. This raises the problem of forecasting the final vintage of data on IIP. We construct a state space model to solve this problem which incorporates bias adjustments, a model of the measurement error process, and a dynamic model for the final vintage of IIP. Application of the Kalman filter produces an optimal forecast of the final vintage of data.     

A THEOREM ON THE CONVEXITY OF PLANAR PARAMETRIC CURVES OF DEGREE N

The main result of this paper is a theorem about the. convexity of curves of degree n on a plane. As its application ,we obtained a sufficient condition that a space curve of degree n in R3 has no singularity points and staying points.     

星间光通信系统BER的自适应带宽控制方法

从接收机的接收功率与卫星振动幅值的关系出发,采用OOK调制方式,以APD为光电探测器,通过近似处理,推导得到了带宽与卫星振动的直接关系式。针对比特误码率(BER)随振动幅值增加而上升的问题提出了用带宽自适应方法控制的解决方案。用MATLAB6.5计算得到了自适应和标准条件下与卫星振动的关系曲线,以及自适应条件下带宽与BER卫星振动的关系曲线。计算结果表明,采用带宽自适应方法可将BER值控制在设计要求以下。     

T_1与T_2之间的几个分离公理

讨论了T1与T2之间的几个分离公理.     

李普希茨函数族的纲与诱导极限

本文利用FH空间理论 ,研究了定义在Banach空间球上的李普希茨函数族的纲与诱导极限     

关于Frechet导算子之紧性

设V,U是同一数域上的Banach空间,而D(T)是V的开子集T:D(T)→U.T.Ando[2]给出了T′是紧泛函的一个充分条件.本文对这一定理的证明进行了修改,并推广了他的结论,得到了Frechet导算子T′为紧算子的一个充分条件.     

赋拟范线性空间及一致有界定理

本文在[1]的基础上给出一颊拓扑线性空间--r(>0)次幂赋拟范线性空间;建立拓扑线性空间可赋拟范化的条件;确立赋拟范空间上连续线性算子族的一致有界定理及赋拟范线性空间的完备性定理等。