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By using the cone theory, t he existence and uniqueness of solution of nonlinear Fredholm type integral equations on an infinite interval can be obtained without the assumption of continuity and compactness condition.

利用锥理论,在不需要非线性项满足连续性和紧性条件下,获得无穷区间上Fredholm型积分方程解的存在唯一性,并给出逼近解迭序列的误差估计。

Any function on an interval will be expanded as the sum of finite items of the scaling functions and wavelets. It plays an important role for numerical analysis of partial differential equations, signal processes, and other similar problems.

于是,任何有限区间上的函数皆可表示为该区间上的尺度函数和小波函数的有限和,即小波级数,这克服了用无穷区间上的小波进行有限信号处理时,在边界上误差较大的不足,同时将该小波用于偏微分方程具有同样重要的意义。

Let be continuous on ,and .If the limit exists and have finite value , the value is the improper integral of on ,which is denoted by,that is

定义1 设函数在区间上连续,取,如果极限存在且为有限值,则此极限为函数在无穷区间上的反常积分,记作,即

On the whole, we do as follows: Firstly, we list some conceptions and lemmas for later use. Secondly, we define δ-fine partitions for infinite interval and integral of vector-valued functions on infinite interval, and discuss the properties of integral, and characterize its primitives...

主要包括以下五部分内容:在第一部分中,我们介绍了本文所用到的基本概念和引理;在第二部分中,通过定义无穷区间上δ-精细的分法,我们给出了无穷区间上向量值函数的积分的定义,并讨论其性质,还给出了原函数的刻划;在本文的第三部分中,我们着重讨论了无穷区间上向量值函数积分的收敛定理;在本文的在第四部分中,我们首先应用无穷区间上向量值函数积分的收敛定理给出了常微分方程整体广义解的存在性定理,其次应用强积分对Banach空间常微分方程广义解进行了讨论;最后,在第五部分中,我们将模糊积分推广到无穷区间上并给出了其数值计算方法。

In this paper,after the concept of infinite interval estimating and its utmost goodness are built,the optimal relation between infinite interval estimating and relevant hypothesis testing is proved.

在提出无穷区间估计以及其上的最优性概念之后,证明了无穷区间估计与相应假设检验的最优性之间的关系,及推演了若干重要的无穷区间估计的最优性。

By introducing a concept of δ-fine partition on infinite interval the-integral of vector-valued functions on infinite interval was made entirely harmonic with that on finite interval.

通过引入无穷区间上δ-精细分法的概念,使无穷区间上向量值函数积分与有限区间上的积分在形式上完全和谐,并证明其与Cauchy扩张的方法和简单积分的思想是等价的。

In this paper,we build symplectic structure of 2-nd order and high order singular differential operators on infinite interval, we construct a symplectic space by the maximal and minimal operator domain .

本文研究了无穷区间上二阶、高阶奇型微分算子的辛结构,利用最大与最小算子域构造了一个辛空间,用辛空间中的线性流形来刻画定义在无穷区间上二阶、高阶奇型对称微分算子的自共轭扩张问题。

Ablish two decision theorems of relative compactness for unbounded function groups in an infinite interval.

sect;2.3我们建立了判定无穷区间上抽象无界连续函数组和抽象无界可微函数组相对紧性的充分必要条件,并对无穷区间上抽象二阶微分方程两点边值问题无界解的存在性做了研究。

We proved the second mean value theorem of integral with intermediate value of continuous function and absolute continuity of integral, and determine that is true even in the infinity interval with same method.

用连续函数的介值性和积分的绝对连续性证明了积分第二中值定理,并用同样的方法证明了当区间为无穷区间时的积分第二中值定理。

In unusual cases, a confidence set may consist of a collection of several separate intervals, which may include semi-infinite intervals, and it is possible that an outcome of a confidence-interval calculation could be the set of all values from minus infinity to plus infinity.

在个别情况下,一个置信系列可以由一系列的多个单独区间组成,其中可能包括半无穷区间。这种情况下,一个置信区间的结果值有可能会是这一系列值当中的一个。

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