ON DIRECT METHOD OF SOLUTION FOR A CLASS OF SINGULAR INTEGRAL EQUATIONS

In this article, by introducing characteristic singular integral operator and associate singular integral equations (SIEs), the authors discuss the direct method of solution for a class of singular integral equations with certain analytic inputs. They obtain both the conditions of solvability and the solutions in closed form. It is noteworthy that the method is different from the classical one that is due to Lu.     

A RIEMANN-TYPE DEFINITON OF THE BOCHNER INTEGRAL

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.     

A SPECIAL COMPLETE HYPER-ELLIPTIC INTEGRAL OF THE FIRST KIND

In this paper, we study a class of complete Abelian integral. We give an exact number and the upper bound of the number of zero points of the integral under some conditions.     

THE FUBINI THEOREMS OF STOCHASTIC MEASURES

This paper discusses the existence of product measures of two specific kinds of stoehastic measures,and expands the integrable classes from classes of real measurable functions to ones which consist of some Banach space valued mappings.With the help of this newly defined stochastie integral, which is called S.B.integral,we have proved three Fubini Theorems:Theorem 1.7,Theorem 1.8 and Theorem 2.7.     

OPTIMIZATION OF ADAPTIVE DIRECT METHOD FOR APPROXIMATE SOLUTION OF INTEGRAL EQUATIONS OF SEVERAL VARIABLES

This paper determines the exact error order on optimization of adaptive directmethods of approximate solution of the class of Fredholm integral equations of the secondkind with kernel belonging to the anisotropic Sobolev classes, and also gives an optimalalgorithm.     

RANDOM SINGULAR INTEGRAL OF RANDOM PROCESS WITH SECOND ORDER MOMENT

This paper discussses the random singular integral of random process with second order moment, establishes the concepts of the random singular integral and proves that it‘s a linear bounded operator of space H^α(L)(rn, s). Then Plemelj formula and some other properties for random singular integral are proved.     

SYMMETRIC INTEGRAL AND THE APPROXIMATION THEOREM OF STOCHASTIC INTEGRAL IN THE PLANE

In this paper, we consider the approximation problem of stochastic integral with respect to two-parameter Wiener process. We first introduce a kind of symmetric integral and prove it obeys the chain rule. Then we apply an integral formula of bounded variation functions with two variables to show the approximation theorem of stochastic integral in the plane. In particular, we prove that the symmetric stochastic integral is stable when the limit is taken in the sense of L~2convergence.     

THEORY OF SINGULAR POINTS OF ORDINARY DIFFERENTIAL EQUATIONS IN COMPLEX DOMAIN

In this paper, the topological of integral surfaces near certain of Lyapunov type singularpoints and certain type of nodes of ordinary differential equations in complex domain are studied.We introduce Briot-Bouquet transformation, in order to study the topological structure of integralsurfaces near higher order singular points. At last we give an estimate of the makimum numberof isolated limit integral surfaces passing through certain type of higher order singular points.     

BOUNDEDNESS OF GENERALIZED FRACTIONAL INTEGRAL OPERATORS

The authors introduce a new kind of fractional integral operators,namely,the so called (θ,N)-type fractional integral operators,and discuss their boundedness on the Hardy spaces,the weak Hardy spaces and the Herz-type Hardy spaces.     

STABILITY AND BOUNDEDNESS OF SOLUTIONS OF VOLTERRA INTEGRAL DIFFERENTIAL EQUATIONS WITH INFINITE DELAY

This paper studies the stability and boundedness of the solutions of Volterra integral differential equations with infinite delay in the phase space (Ch, |·|h), the h-uniform stability, h-uniformly asymptotic stability and h-boundedness of solutions are obtained.     

THE HILBERT BOUNDARY PROBLEM OF DOUBLY PERIODIC ANALYTIC FUNCTIONS

The doubly periodic Hilbert boundary value problem is discussed in this paper.First,certain kind of integral representations of doubly quasi-periodic analytic functions inmultiplication is established so that the Dirichlet problem of such functions is solved.Then,by the method of regularization,the Hilbert boundary value problem is transferredto such a problem,and it is reduced at length to some Fredholm integral equation.Thenumber of solutions and conditions of solvability as well as the form of the generalsolution are obtained.     

FRACTIONAL INTEGRALS OF PERIODIC FUNCTIONS OF SEVERAL VARIABLES

In this paper it has been systematically studied the imbedding properties o f fractional integral operatorsof periodic functions of several variables,and isomorphic properties of fractional intregral operators in thespaces of Lipschitz continuous functions. It has also been proved that the space of fractional integration,thespace of Lipschitz continuous functions and the Sobolev space are identical in L~2-norm.Results obtainedhereare not true for fractional integrals(or Riesz potentials)in R~n.     

SOLUTION OF SYSTEM OF FRACTIONAL DIFFERENTIAL EQUATIONS BY ADOMIAN DECOMPOSITION METHOD

The aim of this paper is to apply the relatively new Adomian decomposition method to solving the system of linear fractional, in the sense of Riemann-Liouville and Caputo respectively, differential equations. The solutions are expressed in terms of Mittag-Leffler functions of matric argument. The Adomian decomposition method is straightforward, applicable for broader problems and avoids the difficulties in applying integral transforms. As the order is 1, the result here is simplified to that of first order differential equation.     

ON THE DISTRIBUTION OF THE VALUES OF MEROMOPHIC FUNCTIONS OF INFINITE ORDER

<正> ⅠNTRODUCTIONIn 1896,Borel established the well known theorem relative tothe distribution of moduli of values for an integral function f(z) offinlite positive order O“The exponent of convergence of the moduliof the zeros of f(z)-α is equal to Q for every constant α exceptpossiibly one value of α at most.”Afterwards he proved a moregeneral theorem in replacing a by an integral function π(z) of orderless than o. Concerning the distribution of argulnents o[" values fora meromorphic fumctionf(z) of finite positive order, Viliron discoveredin 1929 the existence of what he called “direction of Borel” and     

INTEGRAL REPRESENTATION OF SLOWLY GROWING EQUIDISTANT SPLINES

In this paper we consider polynomial splines S(x) with equidistant nodes which may grow a5 O(|x|~5). We present an integral representation of such splines with a distribution kernel. This repre-sentation is related to the Fourier integral of slowly growing functions. The part of the Fourier ex-ponentials herewith play the so called exponential splines by Schoenberg. The integral representationprovides a flexible tool for dealing with the growing equidistant splines. First. it allows us to con-struct a rich library of splines possessing the property that translations of any such spline form a ba-sis of corresponding spline space. It is shown that any such spline is associated with a dual splinewhose translations form a biorthogonal basis. As examples we present solutions of the problems ofprojection of a growing function onto spline spaces and of spline interpolation of growing func-tion. We derive formulas for approximate evaluation of splines projecting a function onto the splinespace and establish therewith exact estimations of the approximation errors.     

SINGULAR INTEGRAL EQUATIONS ALONG AN OPEN ARC WITH SOLUTIONS HAVING SINGULARITIES OF HIGHER ORDER

In this paper, the difficulties on calculation in solving singular integral equations are overcome when the restriction of curve of integration to be a closed contour is cancelled. When the curve is an open arc and the solutions for singular integral equations possess singularities of higher order, the solution and the solvable condition for characteristic equations as well as the generalized Noether theorem for complete equations are given.     

EXISTENCE AND STABILITY OF PERIODIC ORBITS FOR A PERTURBED FOUR-DIMENSIONAL SYSTEM

The purpose of this paper is to study periodic orbits of a perturbed four- dimensional system.Using bifurcation methods and the integral manifold theory,sufficient conditions for the existence and stability of periodic orbits of the perturbed four-dimensional system are obtained.     

PERIODIC AND ALMOST PERIODIC SOLUTIONS OF A CERTAIN INFINITE DELAY INTEGRAL EQUATION

In this paper,by using successive approximation method and fixed-point theorem,we discuss a class of infinite delay integral equation and obtain some sufficient conditions which guarantee the existence and uniqueness of the peri- odic and almost periodic solutions of the system.     

ON THE ESTIMATION OF GENERALIZED LEBESGUE CONSTANT AND MODULUS OF GENERALIZED SINGULAR QUADRATURE FORMULAS AND ITS APPLICATION

This article, first gives the estimaties of two modulus, namely, generalized Lebesgue constant and modulus of generalized singular integral quadrature formulas, then applies them to obtain the error bounds of the operator BLmp to the operator B.     

SOME GENERALIZATION OF GRONWALL-BIHARI INTEGRAL INEQUALITIES AND THEIR APPLICATIONS

The interest of this paper lies in the estimates of solutions of the three kinds of Gronwail-Bihari integral inequalities:(Ⅰ) y(x)≤f(x) sum from i=1 to n(g_i(x)integral from n=0 to x(h_i(d)y(s)ds)),(Ⅱ) y(x)≤f(x) g(x)φ(integral from n=0 to x(h(s)w(y(s))ds))(Ⅲ) y(x)≤f(x) sum from i=1 to n(g_i(x)integral from n=0 to a(h_i(s)y(s)ds g_(n 1)φ(integral from n=0 to x(h_(n 1)(s)w(y(t))ds)).The results include some modifications and generalizations of the results of D. Willett, U. D. Dhongade and Zhang Binggen. Furthermore, applying the conclusion on the above inequalities to a Volterra integral equation and a differential equation, the authors obtain some new better results.