二元函数的局部收敛性

在减弱“一致收敛”的情况下给出了x→a时f(x,y)的极限函数的连续性、可积性、可微性以及极限号与积分号、微分号交换次序的几个定理。     

Existence of asymptotically almost periodic solutions and stability properties for functional difference equations

For functional difference equations with unbounded delay, we characterized the existence of totally stable and asymptotically almost periodic solution by using stability properties of a bounded solution in a certain limiting equation.     

一类Roper—Suffridge算子的性质

讨论了有界星形圆形域上一类Roper—Surfridge算子,证明了其保持一些全纯映照子族的性质．     

证明函数项级数不一致收敛的方法

证明函数项基数不一致收敛是数学分析中的难点.本文给出了5个相关命题的逆否命题及利用逆否命题证明函数项基数不一致收敛的5种方法.     

命运锁链的续递--试析《大浴女》中唐家人命运的相似性

本文重点考察《大浴女》的文本本身,以唐菲的人物命运为切入点进行分析,以求挖掘出文本中唐家人命运的惊人相似性,进而探求其生命结局的潜在成因,以期望藉此达到对此类深奥主题的思考。     

Students’ understanding of the number line / Estudiantes pensando en la recta numérica

We studied the conceptions of students coming from secondary education and university regarding the number line as a representation of real numbers. In the context of a wider questionnaire, 307 students were presented with a task consisting of two verbal items and one graphic item related to the number line. The students were all at different levels in their study of mathematics (in the third, fourth or fifth year of secondary education, or at the beginning or advanced stage of a university degree in mathematics, biology or physical education). A gradient in the depth of the students’ conceptions, associated with the level of their studies in mathematics, was found. This gradient extends from the estrangement of facing the problem or a conception of a drawn or physical matter line, which was associated with students with a lower level of mathematical studies, passing through a vision centred around potential numeric density or a line containing points (discrete), up to an instrumental conception of the line as supportive of magnitudes in advanced students of biology and focusing on continuity sustained by advanced students of mathematics.     

关于多元函数的半连续性的研究

给出了半连续函数的定义，研究了函数具有半连续性的条件，推出了半连续函数的一些性质。     

开区间上一致连续的几个充要条件

一致连续在数学分析中是个非常重要的概念,但关于开区间上一致连续的情况涉及较少,给出了开区间上一致连续的几个等价命题.     

具时滞的分路抑制神经网络的概周期解(英文)

采用与文献[5]完全不同的方法,研究了下列分路抑制神经网络(SICNNs)dxijdt= αijxij ∑Ckl∈Nr(i,j)Cklijf(xkl(t τ))xij+Lij(t)的概周期解的存在性。     

英国的绥靖政策探析

二战爆发前后，英国鉴于自身国力衰 落，为保全其世界霸权地位，对法西斯德国采取了绥靖政策，它与英国传统的均势外交政策是连续性与中断性的统一。