SINGULARITY AND QUADRATURE REGULARITY OF（0，1，．．．，m－2，m）─INTERPOLATION ON THE ZEROS OF（1－x）P_（n－1）~（αβ）（x）

ＳＩＮＧＵＬＡＲＩＴＹＡＮＤＱＵＡＤＲＡＴＵＲＥＲＥＧＵＬＡＲＩＴＹＯＦ（０，１，．．．，ｍ－２，ｍ）─ＩＮＴＥＲＰＯＬＡＴＩＯＮＯＮＴＨＥＺＥＲＯＳＯＦ（１－ｘ）Ｐ_（ｎ－１）~（αβ）（ｘ）ＳｈｉＹｉｎｇｇｕａｎｇ（史应光）（ＣｏｍｐｕｔｉｎｇＣｅ...     

A HOMEOMORPHISM OR LINEAR HOMEOMORPHISM THEOREM FOR CERTAIN 2n~（th）－ORDER DIFFERENTIAL OPERATOR WITH A PARAMETER

ＡＨＯＭＥＯＭＯＲＰＨＩＳＭＯＲＬＩＮＥＡＲＨＯＭＥＯＭＯＲＰＨＩＳＭＴＨＥＯＲＥＭＦＯＲＣＥＲＴＡＩＮ２ｎ~（ｔｈ）－ＯＲＤＥＲＤＩＦＦＥＲＥＮＴＩＡＬＯＰＥＲＡＴＯＲＷＩＴＨＡＰＡＲＡＭＥＴＥＲＬｉｕＹｉｎｇｆａｎ（刘颖范）（ＮａｎｊｉｎｇＵｎｉ?..     

函数EXP（q）的含n个自由参数的（n，n）有理逼近为A－可接受的充要条件

函数ＥＸＰ（ｑ）的含ｎ个自由参数的（ｎ，ｎ）有理逼近为Ａ－可接受的充要条件杨逢建（湘潭机电专科学校）ＴＨＥＮＥＣＥＳＳＡＲＹＡＮＤＳＵＦＦＩＣＩＥＮＴＣＯＮＤＩＴＩＯＮＳＯＦＡ－ＡＣＣＥＰＴＡＢＩＬＩＴＹＯＦｎＰＡＲＡＭＥＴＥＲＳ（ｎ，ｎ）ＲＡＴＩＯ...     

函数EXP（q）的含n个自由参数的（n，n）有理逼近为A－可接受的充要条件

函数ＥＸＰ（ｑ）的含ｎ个自由参数的（ｎ，ｎ）有理逼近为Ａ－可接受的充要条件杨逢建（湘潭机电专科学校）ＴＨＥＮＥＣＥＳＳＡＲＹＡＮＤＳＵＦＦＩＣＩＥＮＴＣＯＮＤＩＴＩＯＮＳＯＦＡ－ＡＣＣＥＰＴＡＢＩＬＩＴＹＯＦｎＰＡＲＡＭＥＴＥＲＳ（ｎ，ｎ）ＲＡＴＩＯ...     

方差估计的随机加权分布的渐近展开—非独立同分布情形

设Ｘ１，．．．，Ｘｎ是一组独立的随机变量序列，设ＥＸｉ＝０，ＶａｒＺｉ＝μ２，ｉ＝１，２，．．．，ｎ，其中μ２是待估参数，当Ｘｉ，ｉ＝１，２，．．．ｎ给定后，分别用Ｄｎ＝ｎ∑ｉ＝１Ｖｉ（Ｘｉ－Ｘ）＾２－１／ｎｎ∑ｉ＝１（Ｘｉ－Ｘ）＾２及Ｕｎ＝ｎ∑ｉ＝１（Ｘｉ－Ｘ）＾２及Ｕｎ＝ｎ∑ｉ＝１Ｖｉ（Ｘｉ－ｎ∑ｉ＝１ＶｉＸｉ）＾２－１／ｎｎ∑ｉ－１（Ｘｉ－Ｘ）＾２两种形式的随机加权分布来逼近Ｔｎ＝１／ｎｎ∑     

TOPOLOGICAL STRUCTURE OF HIGHER ORDER SINGULAR POINT OF PLANE n－DEGREE DIFFERENTIAL SYSTEM WITH TWO ZERO CHARACTERISTIC ROOTS

ＴＯＰＯＬＯＧＩＣＡＬＳＴＲＵＣＴＵＲＥＯＦＨＩＧＨＥＲＯＲＤＥＲＳＩＮＧＵＬＡＲＰＯＩＮＴＯＦＰＬＡＮＥｎ－ＤＥＧＲＥＥＤＩＦＦＥＲＥＮＴＩＡＬＳＹＳＴＥＭＷＩＴＨＴＷＯＺＥＲＯＣＨＡＲＡＣＴＥＲＩＳＴＩＣＲＯＯＴＳＬｉＸｕｅｍｉｎ（李学敏）（Ｓｈ...     

REGULARITY AND EXPLICIT REPRESENTATION OF（0，1，…，m－2，m） INTERPOLATION ON THE ZEROS OF（1－x~2）P_（n－2）~（α，β）（x）

ＲＥＧＵＬＡＲＩＴＹＡＮＤＥＸＰＬＩＣＩＴＲＥＰＲＥＳＥＮＴＡＴＩＯＮＯＦ（０，１，…，ｍ－２，ｍ）ＩＮＴＥＲＰＯＬＡＴＩＯＮＯＮＴＨＥＺＥＲＯＳＯＦ（１－ｘ~２）Ｐ_（ｎ－２）~（α，β）（ｘ）ＳＨＩＹＩＮＧＧＵＡＮＧ（史应光）（ＣｏｍｐｕｔｉｎｇＣ?..     

OSCILLATION AND ASYMPTOTIC BEHAVIOR OF SOLUTIONS OF DELAY DIFFERENTIAL EQUATIONS WITH IMPULSES

ＯＳＣＩＬＬＡＴＩＯＮＡＮＤＡＳＹＭＰＴＯＴＩＣＢＥＨＡＶＩＯＲＯＦＳＯＬＵＴＩＯＮＳＯＦＤＥＬＡＹＤＩＦＦＥＲＥＮＴＩＡＬＥＱＵＡＴＩＯＮＳＷＩＴＨＩＭＰＵＬＳＥＳＳｈｅｎＪｉａｎｈｕａ（申建华）＆ＷａｎｇＺｈｉｃｈｅｎｇ（王志成）（ＨｕｎａｎＵｎ...     

A NEW DETECTING METHOD FOR CONDITIONS OF EXISTENCE OF HOPF BIFURCATION

ＡＮＥＷＤＥＴＥＣＴＩＮＧＭＥＴＨＯＤＦＯＲＣＯＮＤＩＴＩＯＮＳＯＦＥＸＩＳＴＥＮＣＥＯＦＨＯＰＦＢＩＦＵＲＣＡＴＩＯＮＳＨＥＮＪＩＡＱＩ（沈家骐）；ＪＩＮＧＺＨＵＪＵＮ（井竹君）（ＤｅｐａｒｔｍｅｎｔｏｆＭａｔｈｅｍａｔｉｃｓ，ＳｈａｎｄｏｎｇＵｎ...     

THE GENERAL SCHEME FOR HIGHER－ORDER DECOMPOSITIONS OF ZERO－CURVATURE EQUATIONS ASSOCIATED WITH■（2）

ＴＨＥＧＥＮＥＲＡＬＳＣＨＥＭＥＦＯＲＨＩＧＨＥＲ－ＯＲＤＥＲＤＥＣＯＭＰＯＳＩＴＩＯＮＳＯＦＺＥＲＯ－ＣＵＲＶＡＴＵＲＥＥＱＵＡＴＩＯＮＳＡＳＳＯＣＩＡＴＥＤＷＩＴＨ■（２）￥ＺＥＮＧＹＵＮＢＯ（曾云波）（ＤｅｐｏｒｔｍｅｎｔｏｆＡｐｐｌｉｅｄＭａ...     

Qualitative Analysis of Bifurcating Solutions in the Lengyel-Epstein Model

One of the most fundamental problems in theoretical biology is to explain the mechanisms by which patterns and forms are created in the＇living world. In his seminal paper ＂The Chemical Basis of Morphogenesis＂, Turing showed that a system of coupled reaction-diffusion equations can be used to describe patterns and forms in biological systems. However, the first experimental evidence to the Turing patterns was observed by De Kepper and her associates（1990） on the CIMA reaction in an open unstirred reactor, almost 40 years after Turing＇s prediction. Lengyel and Epstein characterized this famous experiment using a system of reaction-diffusion equations. The Lengyel-Epstein model is in the form as follows     

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.     

(0,1 ;0)-INTERPOLATION ON INFINITE INTERVAL (-∞, +∞)

In this paper, we study the explicit representation and convergence of (0, 1; 0)-interpolation on infinite interval, which means to determine a polynomial of degree ≤ 3n - 2 when the function values are prescribed at two set of points namely the zeros of Hn(x) and H′n(x) and the first derivatives at the zeros of H′n(x).     

On a class of self-similar processes with stationary increments in higher order Wiener chaoses

We study a class of self-similar processes with stationary increments belonging to higher order Wiener chaoses which are similar to Hermite processes. We obtain an almost sure wavelet-like expansion of these processes. This allows us to compute the pointwise and local Hölder regularity of sample paths and to analyse their behaviour at infinity. We also provide some results on the Hausdorff dimension of the range and graphs of multidimensional anisotropic self-similar processes with stationary increments defined by multiple Wiener–Itô integrals.     

On a class of Riemann surfaces

It is considered the class of Riemann surfaces with dimT1 = 0, where T1 is a subclass of exact harmonic forms which is one of the factors in the orthogonal decomposition of the spaceΩH of harmonic forms of the surface, namely The surfaces in the class OHD and the class of planar surfaces satisfy dimT1 = 0. A.Pfluger posed the question whether there might exist other surfaces outside those two classes. Here it is shown that in the case of finite genus g, we should look for a surface S with dimT1 = 0 among the surfaces of the form Sg\K , where Sg is a closed surface of genus g and K a compact set of positive harmonic measure with perfect components and very irregular boundary.     

A REPRESENTATION FORMULA RELATED TO SCHR(O)DINGER OPERATORS

Schr(o)dinger operator is a central subject in the mathematical study of quantum mechanics.Consider the Schrodinger operator H = -△ V on R, where △ = d2/dx2 and the potential function V is real valued. In Fourier analysis, it is well-known that a square integrable function admits an expansion with exponentials as eigenfunctions of -△. A natural conjecture is that an L2 function admits a similar expansion in terms of "eigenfunctions" of H, a perturbation of the Laplacian (see [7], Ch. Ⅺ and the notes), under certain condition on V.     

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.     

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.     

Journal of the Operations Research Society of China Special issue on Operations Research in Healthcare Management

正Guest Editors:Hong Chen,Shanghai Jiao Tong University,Shanghai,China Guohua Wan,Shanghai Jiao Tong University,Shanghai,China David Yao,Columbia University,New York,USA Scope:Healthcare delivery worldwide has been fraught with high cost,low efficiency and poor quality of patient care service.For the field of operations research(OR),healthcare offers some of the biggest challenges as well as best opportunities in