广义F积分的表示(Ⅰ)

与Ｓｕｇｅｎｏ的Ｆ积分表示理论相比较，本文探讨了广义Ｆ积份的表示问题，给出了几个表示定理，如中值定理，重排转化定理等。     

广义F积分的表示(Ⅱ)

给出把一类特殊的单调泛函表示为广义Ｆ积分的Ｒｅｉｓｚ表示定理。     

F值Choquet积分(Ⅰ)--F值函数关于F测度的Choquet积分[(

本文为取值于F数的Choquet积分系列之一,探讨了F值函数关于F测度的Choquet积分.我们以区间分析为工具,在定义区间值函数Choquet积分的基础上,给出了F值函数Choquet积分的定义,得到了各种性质和收敛定理.     

F值Choquet积分（I）：F值函数关于F测度的Choquet积分

本文为取值于F数的Choquet积分系列之一,探讨了F值函数关于F测度的Choquet积分。我们以区间分析为工具,在定义区间值函数Choquet积分的基础上,给出了F值函数Choquet积分的定义,得到了各种性质和收敛定理。     

一个新的Bartle积分极限定理

本文建立了一个新的Ｂａｒｔｌｅ积分极限定理,较好地解决了Ｂａｒｔｌｅ积分极限理论的主要问题。Ｂａｒｔｌｅ积分,（Ｆ）可积,（Ｆ）度量收敛,（Ｆ）几乎处处收敛     

关于Fejer—Riesz不等式

本文给出（ｉ）一个Ｆｅｊｅｒ－Ｒｉｅｓｚ定理的改进;（ｉｉ）一种Ｆｅｊｅｒ－Ｒｉｅｓｚ定理的推广（在ＨＰ函数空间上）     

Fuglede—Putnam定理的简单证明

Ｆｕｇｌｅｄｅ──Ｐｕｔｎａｍ定理的简单证明陈寅（河海大学数理系２１００２４）复矩阵Ａ称为正规矩阵，如Ａ＊Ａ＝ＡＡ＊，这里Ａ＊为Ａ的共轭转置，关于正规矩阵的最重要的结论之一是Ｆｕｇｌｅｄｅ－Ｐｕｔｎａｍ定理，［１，５３８－５４２］给出了这个定理的证明...     

广义（N）-模糊积分的转换与表示定理

针对模糊测度空间上由一般可测函数所定义的广义(N)-模糊积分,结合该模糊积分与Lebesgue积分的内在联系,利用α-截断函数的定义,分别首次获得这种广义(N)-模糊积分的积分转换定理和表示定理.     

空间F^＊上一类积分方程解的存在和唯一性

本文在引文［１—４］的基础出上，首次在空间~Ｆ＊上构造性的建立了一类积分方程。并获得了这类积分方程解的存在和唯一性定理。     

G(F4′)条件与加强形式的停止定理

首次提出了Ｇ（Ｆ４′）条件，给出了Ｇ（Ｆ４′）条件的两个等价关系，得到了加强形式的停止定理和强鞅的一个等价关系．     

RECENT PROGRESS ON SPHERICAL HARMONIC APPROXIMATION MADE BY BNU RESEARCH GROUP ——In memory of Professor Sun Yongsheng

As early as in 1990, Professor Sun Yongsheng, suggested his students at Beijing Normal University to consider research problems on the unit sphere. Under his guidance and encouragement his students started the research on spherical harmonic analysis and approximation. In this paper, we incompletely introduce the main achievements in this area obtained by our group and relative researchers during recent 5 years （2001-2005）. The main topics are： convergence of Cesaro summability, a.e. and strong summability of Fourier-Laplace series; smoothness and K-functionals; Kolmogorov and linear widths.     

A unified approach to certain problems of best local approximation

In this paper we study best local quasi-rational approximation and best local approximation from finite dimensional subspaces of vectorial functions of several variables. Our approach extends and unifies several problems concerning best local multi-point approximation in different norms.     

Boundedness for commutators of multipliers on Hardy type spaces

In this paper, we study the commutators generalized by multipliers and a BMO function. Under some assumptions, we establish its boundedness properties from certain atomic Hardy space Hb^p（R^n） into the Lebesgue space L^p with p 〈 1.     

THE 8~(th) INTERNATIONAL CONGRESS ON INDUSTRIAL AND APPLIED MATHEMATICS

<正>August 10-14,2015Beijing,ChinaThe International Congress on Industrial and Applied Mathematics(ICIAM)is the premier international congress in the field of applied mathematics held every four years under the auspices of the International Council for Industrial and Applied Mathematics.From August 10 to 14,2015,mathematicians,scientists     

Towards Excellence in Science Chinese Academy of Sciences

<正>May 26,2014,Beijing Science is a human enterprise in the pursuit of knowledge.The scientific revolution that occurred in the 17th Century initiated the advances of modern science.The scientific knowledge system created by     

Bounds for the zeros of polynomials

Let P(z)=∑↓j=0↑n ajx^j be a polynomial of degree n. In this paper we prove a more general result which interalia improves upon the bounds of a class of polynomials. We also prove a result which includes some extensions and generalizations of Enestrǒm-Kakeya theorem.     

Boundedness of commutators related to Marcinkiewicz integrals on hardy type spaces

In this paper, the authors study the boundedness of the operator [μΩ, b], the commutator generated by a function b ∈ Lipβ(Rn)(0 ＜β≤ 1) and the Marcinkiewicz integrals μΩ, on the classical Hardy spaces and the Herz-type Hardy spaces in the case Ω∈ Lipα(Sn-1)(0 ＜α≤ 1).     

Jacobi polynomials used to invert the laplace transform

Given the Laplace transform F(s) of a function f(t), we develop a new algorithm to find an approximation to f(t) by the use of the classical Jacobi polynomials. The main contribution of our work is the development of a new and very effective method to determine the coefficients in the finite series expansion that approximation f(t) in terms of Jacobi polynomials. Some numerical examples are illustrated.     

Generalization of the interaction between Haar approximation and polynomial operators to higher order methods

In applications it is useful to compute the local average empirical statistics on u. A very simple relation exists when of a function f（u） of an input u from the local averages are given by a Haar approximation. The question is to know if it holds for higher order approximation methods. To do so, it is necessary to use approximate product operators defined over linear approximation spaces. These products are characterized by a Strang and Fix like condition. An explicit construction of these product operators is exhibited for piecewise polynomial functions, using Hermite interpolation. The averaging relation which holds for the Haar approximation is then recovered when the product is defined by a two point Hermite interpolation.