α型β级Bazilevic函数的Fekete-Szeg?问题

设Ｂ（α，β）（α＞０，０≤β＜１）表示在单位圆盘内定义的规范化的α型β级Ｂａｚｉｌｅｖｉｃ函数类．本文对Ｂ（α，β）中函数ｆ（ｚ）＝ｚ＋∑from∞to(ｎ＝２)ａ_ｎｚ^ｎ得到｜ａ３－λａ₂²｜（０≤λ≤１）的准确估计．  

Banach空间非线性脉冲Volterra型积分方程和积分-微分方程的可解性

本文在较宽松的条件下,研究了Banach空间非线性脉冲Volterra型积分方 程和脉冲积分一微分方程解的存在性,建立了新的存在性定理,本质上改进了某些已 知的结果.  

环上矩阵的Moore-Penrose逆

本文研究环上矩阵的广义逆,得到其存在的充要条件,给出它的表达式,推广了以往文献的相应结果。  

En中的正弦定理及应用

Sine theorems in Eⁿ are first established. By means of the first one, a sine property is proved, which leads to some results for higher dimensional spaces in [2] and [3] (i.e. Corollaries, 2、3、4、5) and Some additional new results (i.e. Corollaries. l、6、7、8).  

Local completeness and dual local quasi-completeness

It is proved that -completeness is equivalent to -completeness (defined by Saxon and Sánchez Ruiz), and becomes a new characteristic condition for local completeness. The relationship between dual local completeness, dual local quasi-completeness and the Banach-Mackey property is investigated. For a quasi-Mackey space, dual local quasi-completeness, -quasi-barrelledness, Ruess' property (quasi-L) and -quasi-barrelledness are equivalent to each other.

  

关于sn-度量空间

本文利用ｓｎ－度量空间的一些等价刻划及ｓｎ－度量空间与ｇ－度量空间、度量空间之间的关系，研究了ｓｎ－度量空间的一些映射性质，证明了ｓｎ－度量空间的闭象是ｓｎ－度量空间当且仅当它是ｓｎ－第一可数的，利用这一结果证明了有限到一闭映射和开闭映射均保持ｓｎ－度量空间，并给出反例说明完备映射不保持ｓｎ－度量空间，本文还证明了ｓｎ－变量空问满足完备逆象Ｇδ－对角线定理．  

抛物型变分不等式的变网格有限元方法

关于抛物型变分不等式的数值解法,可见[1]—[4],其基本做法是:对空间域采用有限元方法(或差分方法),而对时间轴采用差分方法,并且对于不同时间的空间区域,采用相同的网格.本文将考察这类问题的变网格有限元解法,即对于不同时间的空间区域,允  

独立与NA列部分和的精致渐近性

令{X,Xi:i≥1)为属于非退化稳定分布一般吸引场的独立同分布随机变量列,Sn=∑i=1nXi.本文对十分广泛的拟权函数和边界函数得到了Sn的精致渐近的结果和正态吸引场强平稳NA列部分和的精致渐近的结果,改进并推广了Wang等的结果,从而使此前关于独立列和NA列部分和精致渐近性方面的许多经典的和最新的结果都可以包括在本文的框架之内.  

Uniform supersaturated design and its construction

Supersaturated designs are factorial designs in which the number of main effects is greater than the number of experimental runs. In this paper, a discrete discrepancy is proposed as a measure of uniformity for supersaturated designs, and a lower bound of this discrepancy is obtained as a benchmark of design uniformity. A construction method for uniform supersaturated designs via resolvable balanced incomplete block designs is also presented along with the investigation of properties of the resulting designs. The construction method shows a strong link between these two different kinds of designs