共查询到20条相似文献,搜索用时 343 毫秒
1.
WuCongxin YaoXiaobo 《数学研究》1994,27(1):32-36
We define the strong McShane integral and prove its equivalence with the Bochner integral In other words,we have given a Riemann-type definition of the Bochner integral. 相似文献
2.
In this paper, we give the Riemann-type extensions of Dunford integral and Pettis integral, C-Dunford integral and C-Pettis integral. We discuss the relationship between the C-Pettis integral and Pettis integral, and prove a controlled convergence theorem for the C-Pettis integral. 相似文献
3.
Donatella Bongiorno 《Czechoslovak Mathematical Journal》2004,54(3):717-725
Riemann-type definitions of the Riemann improper integral and of the Lebesgue improper integral are obtained from McShane's definition of the Lebesgue integral by imposing a Kurzweil-Henstock's condition on McShane's partitions. 相似文献
4.
The Mcshane Integral of Fuzzy-Valued Functions 总被引:3,自引:0,他引:3
In this paper, the Mcshane integrals of fuzzy-valued functions are defined, discussed, and characterized. It shows that, in a sense, the Mcshane integrals of interval-valued functions and fuzzy-valued functions are the Riemann-type definitions of the Aumann integral and (K) integral respectively.AMS Subject Classification (2000) 28EI0 (04A72)The authors are supported by the Special Fund of China for Ph.D. Instructors in Universities 相似文献
5.
(下整)和标号与排斥(下整)和标号是图的一种压缩表示.一个图G称为下整和图,若它同构于某个SQ+的下整和图.图Pn×K2称为梯子.本文给出了梯子细分图Ln*的定义,并确定了梯子细分图Ln*的排斥(下整)和数. 相似文献
6.
The Bartle–Dunford–Schwartz integral for scalar functions with respect to vector measures is characterized by means of Riemann-type
sums based on partitions of the domain into countably many measurable sets. In this setting, two natural notions of integrability
(Birkhoff integrability and Kolmogoroff integrability) turn out to be equivalent to Bartle–Dunford–Schwartz integrability.
A. Fernández, F. Mayoral and F. Naranjo were supported by MEC and FEDER (project MTM2006–11690–C02–02) and La Junta de Andalucía. J. Rodríguez was supported by MEC and FEDER (project MTM2005-08379), Fundación Séneca (project 00690/PI/04) and the Juan de la Cierva Programme (MEC and FSE). 相似文献
7.
8.
A. P. Solodov 《Mathematical Notes》2005,77(1-2):232-245
The generalization of the Kolmogorov integral to functions with values in a Banach space is considered. It is proved that the resulting integral turns out to be essentially more general than the Bochner integral and is exactly equivalent to an integral of McShane type, whose definition requires that the scaling function be measurable.Translated from Matematicheskie Zametki, vol. 77, no. 2, 2005, pp. 258–272.Original Russian Text Copyright © 2005 by A. P. Solodov.This revised version was published online in April 2005 with a corrected issue number. 相似文献
9.
The Bartle–Dunford–Schwartz integral for scalar functions with respect to vector measures is characterized by means of Riemann-type
sums based on partitions of the domain into countably many measurable sets. In this setting, two natural notions of integrability
(Birkhoff integrability and Kolmogoroff integrability) turn out to be equivalent to Bartle–Dunford–Schwartz integrability. 相似文献
10.
The problem posed by Gelfand on the asymptotic behavior (in time) of solutions to the Cauchy problem for a first-order quasilinear equation with Riemann-type initial conditions is considered. By applying the vanishing viscosity method with uniform estimates, exact asymptotic expansions in the Cauchy–Gelfand problem are obtained without a priori assuming the monotonicity of the initial data, and the initial-data parameters responsible for the localization of shock waves are described. 相似文献
11.
设S是幺半群.本文介绍并研究了正则右系的一个推广.一个右S-系A称为C(P)系,如果A的所有循环子系满足条件(P).本文证明了右C(P)系形成了右S-系的一个新的类,同时,C(P)性质为幺半群同调分类研究提供了新思路. 相似文献
12.
旨在利用概率方法探讨鞅空间K2与M1之间的鞅空间包含变化关系.首先提出了新的鞅空间M(ln+M)p,L(ln+L)p以及K(ln+K)p(其中p 1)的定义,并证明了其空间包含关系. 相似文献
13.
将图的标号问题由每个顶点需要一个标号的情况推广到每个顶点需要多个标号的情况,给出裂变图的概念以及赋权图的L(_(d,d,1)~(0,1,2))-标号的概念,给出R-单位球图对应裂变图的L(_(d,d,1)~(0,1,2))-标号数的一个上界。 相似文献
14.
Here presented are the definitions of(c)-Riordan arrays and(c)-Bell polynomials which are extensions of the classical Riordan arrays and Bell polynomials.The characterization of(c)-Riordan arrays by means of the A-and Z-sequences is given,which corresponds to a horizontal construction of a(c)-Riordan array rather than its definition approach through column generating functions.There exists a one-to-one correspondence between GegenbauerHumbert-type polynomial sequences and the set of(c)-Riordan arrays,which generates the sequence characterization of Gegenbauer-Humbert-type polynomial sequences.The sequence characterization is applied to construct readily a(c)-Riordan array.In addition,subgrouping of(c)-Riordan arrays by using the characterizations is discussed.The(c)-Bell polynomials and its identities by means of convolution families are also studied.Finally,the characterization of(c)-Riordan arrays in terms of the convolution families and(c)-Bell polynomials is presented. 相似文献
15.
16.
Yang Lushan 《大学数学》1998,(2)
本文引入T(t)积分半群的概念,它是n次积分半群[1]及α次积分半群[2]的推广.我们给出T(t)积分半群的定义、生成定理,并讨论相应的一类积分型抽象Cauchy问题解的存在唯一性. 相似文献
17.
Geometric Estimates of the First Eigenvalue of (p,q)-elliptic Quasilinear System Under Integral Curvature Condition 下载免费PDF全文
Mohammad Javad Habibi Vosta Kolaei & Shahroud Azami 《偏微分方程(英文版)》2021,34(4):348-368
Consider (M,g) as a complete, simply connected Riemannian manifold.
The aim of this paper is to provide various geometric estimates in different cases for
the first eigenvalue of (p,q)-elliptic quasilinear system in both Dirichlet and Neumann
conditions on Riemannian manifold. In some cases we add integral curvature condition and maybe we prove some theorems under other conditions. 相似文献
18.
We prove that the admissibility of any pair of vector-valued Schäffer function spaces (satisfying a very general technical condition) implies the existence of a “no past” exponential dichotomy for an exponentially bounded, strongly continuous cocycle (over a semiflow). Roughly speaking the class of Schäffer function spaces consists in all function spaces which are invariant under the right-shift and therefore our approach addresses most of the possible pairs of admissible spaces. Complete characterizations for the exponential dichotomy of cocycles are also obtained. Moreover, we involve a concept of a “no past” exponential dichotomy for cocycles weaker than the classical concept defined by Sacker and Sell (1994) in [23]. Our definition of exponential dichotomy follows partially the definition given by Chow and Leiva (1996) in [4] in the sense that we allow the unstable subspace to have infinite dimension. The main difference is that we do not assume a priori that the cocycle is invertible on the unstable space (actually we do not even assume that the unstable space is invariant under the cocycle). Thus we generalize some known results due to O. Perron (1930) [14], J. Daleckij and M. Krein (1974) [7], J.L. Massera and J.J. Schäffer (1966) [11], N. van Minh, F. Räbiger and R. Schnaubelt (1998) [26]. 相似文献
19.
In this work, some classes of initial boundary-value problems are investigated in the Sobolev space for the third-order linear pseudoparabolic equation having, in general, nonsmooth coefficients. A new type of Riemann function concept is given for these problems, which is more natural than the classical Riemann-type function concept, and an integral form of the solutions of nonhomogeneous problems can be found more naturally using this concept. 相似文献
20.
M. Federson 《Czechoslovak Mathematical Journal》2002,52(2):365-367
We slightly modify the definition of the Kurzweil integral and prove that it still gives the same integral. 相似文献