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1.
本文讨论了由(?)-smooth拓扑分子格和(?)-smooth连续的广义序同态所构成的STML((?)) 范畴的若干结果,证明了范畴STML((?))是拓扑范畴,范畴TML是范畴STML((?))的双反射满子范畴,以及两个伴随定理.  相似文献   

2.
STML(C)范畴     
本文讨论由Lsmooth拓扑分子格和(L1,L2)smooth连续的广义序同态所构成的STML(C)范畴的若干结果,利用集合套的方法给出了态射的若干性质,证明了范畴STML(C)是拓扑范畴.  相似文献   

3.
本文讨论了由L-smooth拓扑分子格和L-smooth连续的广义序同态所构成的STML(し)范畴的苦干结果,证明了范畴STML(し)是拓扑范畴,范畴TML是范畴STML(し)的双反射满子范畴,以及两个伴随定理.  相似文献   

4.
从整体角度出发,证明了拓扑空间范畴Top分别是拓扑Fuzz范畴TopFuz与拓扑分子格范畴TML的反射与余反射满子范畴,TopFuz是TML的反射与余反射(非满)子范畴.  相似文献   

5.
李永明  王国俊 《数学学报》1998,41(4):731-736
从整体角度出发,证明拓扑空间范畴Top分别是拓扑Fuzz范畴TopFuzz与拓扑分子格范畴TML的反射与余反射满子范畴,TopFuzzy是TML的反射与余反射(非满)子范畴。  相似文献   

6.
界定了模糊化(拓扑)导算子满足的公理,并且给出了若干模糊化(拓扑)导算子的刻画;同时建立了模糊化(拓扑)导算子和模糊化(拓扑)闭包算子之间的关系,进一步引入了模糊化拓扑导空间范畴I-GDS,并证得范畴I-GCS和I-GDS同构.  相似文献   

7.
本文给出L-fuzzy N-收敛空间的定义,讨论L-fuzzy N-收敛空间范畴(L-fuzzyN-收敛空间和它们之间的连续映射构成的范畴)的若干范畴的性质,并且证明它的一个子范畴同构与L-fuzzy拓扑空间范畴.  相似文献   

8.
本文研究L-fuzzy 拓扑空间的一类几乎开L-fuzzy 集的性质,在L-fuzzy 拓扑空间中引入了α-结构的概念,证明了由一般拓扑空间(X,T)诱导的L-fuzzy 拓扑空间(LX,WL(T))的α-结构必是LX 上的L-fuzzy 拓扑,并且指出这个拓扑就是由一般拓扑空间(X,T)的α- 结构诱导的.此外,本文还给出了与诱导的L-fuzzy拓扑空间的α-结构相关的若干性质.  相似文献   

9.
讨论向量值函数的Banach代数H∞(D;X)的极大理想空间的拓扑性质和代数性质,得到了若干结果.  相似文献   

10.
高大永 《数学杂志》1999,19(3):245-249
本文研究L-fuzzy拓扑空间的一类几乎开L-fuzzy集的性质,在L-fuzzy拓扑空间中引入了a-结构的概念,证明了由一般拓扑空间(X,F)诱导的L-fuzzy拓扑空间(L^X,WL(T))的a-结构必是L^X上的L-fuzzy拓扑,并且指出这个拓扑就是由一般拓扑空间(X,T)的a-结构诱导的,此外,本文还给出了与诱导的L-fuzzy拓扑空间的a-结构相关的若干性质。  相似文献   

11.
12.
张丽娜  吴建华 《数学进展》2008,37(1):115-117
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  相似文献   

13.
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.  相似文献   

14.
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.  相似文献   

15.
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).  相似文献   

16.
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.  相似文献   

17.
18.
正Applied Mathematics-A Journal of Chinese Universities,Series B(Appl.Math.J.Chinese Univ.,Ser.B)is a comprehensive applied mathematics journal jointly sponsored by Zhejiang University,China Society for Industrial and Applied Mathematics,and Springer-Verlag.It is a quarterly journal with  相似文献   

19.
正Journal overview:Journal of Mathematical Research with Applications(JMRA),formerly Journal of Mathematical Research and Exposition(JMRE)created in 1981,one of the transactions of China Society for Industrial and Applied Mathematics,is a home for original research papers of the highest quality in all areas of mathematics with applications.The target audience comprises:pure and applied mathematicians,graduate students in broad fields of sciences and technology,scientists and engineers interested in mathematics.  相似文献   

20.
A cumulative-capacitated transportation problem is studied. The supply nodes and demand nodes are each chains. Shipments from a supply node to a demand node are possible only if the pair lies in a sublattice, or equivalently, in a staircase disjoint union of rectangles, of the product of the two chains. There are (lattice) superadditive upper bounds on the cumulative flows in all leading subrectangles of each rectangle. It is shown that there is a greatest cumulative flow formed by the natural generalization of the South-West Corner Rule that respects cumulative-flow capacities; it has maximum reward when the rewards are (lattice) superadditive; it is integer if the supplies, demands and capacities are integer; and it can be calculated myopically in linear time. The result is specialized to earlier work of Hoeffding (1940), Fréchet (1951), Lorentz (1953), Hoffman (1963) and Barnes and Hoffman (1985). Applications are given to extreme constrained bivariate distributions, optimal distribution with limited one-way product substitution and, generalizing results of Derman and Klein (1958), optimal sales with age-dependent rewards and capacities.To our friend, Philip Wolfe, with admiration and affection, on the occasion of his 65th birthday.Research was supported respectively by the IBM T.J. Watson and IBM Almaden Research Centers and is a minor revision of the IBM Research Report [6].  相似文献   

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