计量逻辑学中的反射变换

首先在连续值L*逻辑度量空间中,给出了公式集F(S)上的反射变换φ:F(S)→F(S)的概念,证明了该反射变换φ是F(S)上的自同构映射。其次证明了计量逻辑学中公式的真度,公式间的相似度与伪距离在反射变换下保持不变,而且证明了在反射变换下三种近似推理是等价的。最后,研究了反射变换φ的不动点的性质。     

绝对连续测度的Loeb代数

It is proved that if μ and v be finite measures on a measurable space (X,S) and v is absolutely continuous with respect to v, then it is holds that L(^*S,^*v) C L(^*S,^*v), while L(^*S,^*v) and L(^*S,^*v) are the Loeb algebras with respect to measure spaces (X,S,μ) and(X,S,μ).     

形式系统L*(n)的完备性

模糊逻辑命题演算形式系统 L*自 1 997年被提出以来 ,在模糊逻辑与模糊推理的理论与应用中发挥了重要的作用 .系统 L* 的完备性直到最近才由作者给出证明 .本文进一步研究系统 L*的扩张在 n元 R0 链 Wn 上的完备性问题 ,通过构造公式列 ,得到系统 L*的扩张列 { L* (n) } ,使用代数方法证明了对于任何n≥ 3 ,系统 L* (n)关于 Wn 是完备的     

Topologically minimal surfaces versus self-amalgamated Heegaard surfaces

Let V ∪SW be a Heegaard splitting of M,such that αM = α-W = F1 ∪ F2 and g(S) = 2g(F1)= 2g(F2). Let V * ∪S*W * be the self-amalgamation of V ∪SW. We show if d(S) 3 then S* is not a topologically minimal surface.     

命题公式集F(S)的基于R0-算子的16类分划

利用R0-蕴涵算子对命题公式集F(S)进行分类,得出了F(S)的—个16类分划,并证明了这种分类关于非运算是同余分类.最后讨论了各类关于MP运算与HS运算的封闭性.     

命题公式集F(S)的基于R0-算子的16类分划

利用R₀-蕴涵算子对命题公式集F(S)进行分类,得出了F(S)的一个16类分划,并证明了这种分类关于非运算是同余分类.最后讨论了各类关于MP运算与HS运算的封闭性.     

命题逻辑系统(￡)*n中公式关于有限理论的∑Γ-真度理论

将模糊命题逻辑中的∑-α-重言式理论与计量逻辑学中的真度理论相结合,在模糊命题逻辑系统(￡)*n中引入了公式集相对于有限理论的∑Γ-模糊真度理论,讨论了其中的主要性质.并利用真度关系:τΓ(A) τΓ(A→B)≤1 τΓ(B)在模糊命题逻辑系统(￡)*n中的公式集F(S)上引入相对于有限理论的Γ-伪距离概念,从而为在模糊命题逻辑系统(￡)*n中建立相对于有限理论的近似推理框架奠定了基础.     

桶型空间的一些注记

Husain和Wong引进了s桶空间概念,统一处理桶空间和拟桶空间.本文给出各种S桶空间的特征,一个Banach-steinhaus型的结果以及一个S桶空间与S吸囿空间的关系的定理. 文中(E,(?)),(F,φ)是T_2局部凸拓扑线性空间.E＇是E的拓扑对偶空间.由E的某些(?)有界集组成的集族S称为E＇的拓扑化族是指s满足E={B∶B∈S}.L(E,F)上的在s上一致收敛的拓扑记为(?)_s(F).当F为数域K时.(?)_s(K)记为(?)_s.(?)_s便是E＇上的在S上一致收敛的拓扑.E＇上的全部(?)_s有界集(?)是一个E的拓扑化族.E上的在(?)上一致收敛的拓扑     

模糊逻辑~*和NM的公理系统的简化

从王国俊教授提出的模糊命题演算形式系统*、0*的性质以及它们与F.E steva和L.G odo提出的M TL、IM TL和NM的关系出发,借助代数方法证明了*和NM中的公理(L1*0)和(NM)可以由一条只含一个命题变元且形式更为简单的公理模式((L*W)代替。这一结果简化了*和NM的公理系统。     

三角形中“一朵花”

如果将△ABC的各边三等分,D、E,F、G,H、I分别是BC、AC、AB的三等分;AD和AE分别交BG、BF,CH、CI于P、W、T、V和L、Z、M、Q;BG和BF分别交CH、CI于N、U和R、K,适当涂上阴影得到的图如图1,两层阴影一朵花,它有很漂亮的性质.结论:(1)点A、N、K共线;(2)S△TPN=S△PUV=S△VWK=S△KQZ=S△ZRM=S△MLN;     

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.     

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.     

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.     

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     

ANALYSIS IN THEORY AND APPLICATIONS Vol. 30, 2014 CONTENTS

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