关于多复变数Cauchy型积分的边界性质

本文用新的方法研究Ｂ－Ｍ型积分的边界性质，所得结果推进了文［１］的结果，并指出文［４］证明有错误     

闭逐块光滑流形上的Cauchy—Fantanppie型积分的边界性质

对Ｃ＾ｎ空间中具有逐块Ｃ＾（１）光滑可定向边界δＤ的有界域Ｄ和著名的Ｃａｕｃｈｙ－Ｆａｎｔａｐｐｉｅ公式，本文定义一类与Ｂｏｃｈｎｅｒ－ｍａｒｔｉｎｅｌｌｉ核同伦等价的Ｃ－Ｆ核Ω，应用同伦方法证明具有Ｈｏｌｄｅｒ密度的相应奇异积分Ｆ（ｔ）存在哥西主值和Ｃ－Ｆ型积分Ｆ（ｚ）存在满足Ｈｏｌｄｅｒ条件的内，外极限值Ｆ＾＋（ｔ）和Ｆ＾－（ｔ）；同时建立一个更一般的含有边界上点ｔ的立体角系数α（ｔ）的Ｐｌｅ     

闭逐块光滑流形上的Cauchy－Fantappie型积分的边界性质

对Ｃ￣ｎ空间中具有逐块Ｃ￣（１）光滑可定向边界Ｄ的有界域Ｄ和著名的Ｃａｕｃｈｙ－Ｆａｎｔａｐｐｉｅ公式，本文定义一类与Ｂｏｃｈｎｅｒ－Ｍａｒｔｉｎｅｌｌｉ核同伦等价的Ｃ－Ｆ核Ω，应用同伦方法证明具有Ｈｏｌｄｅｒ密度的相应奇异积分Ｆ（ｔ）存在哥西主值和Ｃ－Ｆ型积分Ｆ（ｚ）存在满足Ｈｏｌｄｅｒ条件的内、外极限值Ｆ￣＋（ｔ）和Ｆ￣－（ｔ）；同时建立一个更一般的含有边界上点ｔ的立体角系数α（ｔ）的Ｐｌｅｍｅｌｊ公式。     

Bochner－Martinelli积分的Plemelj公式

关于Ｂｏｃｈｎｅｒ－Ｍａｒｔｉｎｅｌｌｉ积分边界性质的研究，前人已有许多结果，在边界是Ｃ１光滑核密度函数是Ｈｏｌｄｅｒ连续的条件下本文给出了Ｐｌｅｍｅｌｊ公式的一个简单证法，并且极限是任意的而不仅是法向极限或沿角区域的极限．     

关于多复变数积分表示的注释

近年来许多文章应用所谓的Ａ类函数来建立Ｃ^ｎ空间中有界域上的积分表示．本文证明了Ｃ^ｎ（ｎ≥２）中任意一有界域上根本不存在这种Ａ类函数，并指出目前多复变数积分表示中存在的一些模糊概念和本质的错误     

实Clifford分析中的拟Bochner Martinelli型高阶奇异 积分

该文借助于高阶奇异积分的Hadmard主值思想以及归纳法思想讨论了实Clifford分析中拟Bochner Martinelli型高阶奇异积分Hadmard主值的存在性、递推公式、计算公式,以及在Hadamard主值意义下的微分公式.     

奇异积分交换子在加权Herz型Hardy空间上的有界性质

T_b表示由加权Lipschitz函数b与Calderon-Zygmund奇异积分算子T生成的交换子.研究了T_b在加权Herz型Hardy空间上的有界性质,并在端点处证明了交换子是从加权Herz型Hardy空间到加权弱Herz空间的有界算子.     

分数次积分交换子在加权Herz型Hardy空间上的有界性质

本文研究了由分数次积分I_l与加权Lipschitz函数b生成的交换子[b,I_l]在加权Herz型Hardy空间上的估计.利用加权Herz型Hardy空间的分解理论,得到了交换子[b,I_l]从加权Herz型Hardy空间到(弱)加权Herz空间上的有界性质.     

具分片光滑边界域上的Cauchy-Fantappie型积分的边界性质

本文给出具分光滑边界Ω的域D包含C^n上的Cauchy-Fantappie型积分表示的内外极限值：Φ^ (t)=（1-β（t)/S)ψ（t) ∫Ω^ψ（ξ）K(ξ,t) Φ^-(t)=(-β（t）/S）ψ（t) ∫Ω^ψ（ξ）K（ξ,t)属于H（α,Ω）,推广了陈叔谨先生1994年得到的一个结果。     

齐型空间上的分数次积分算子

An equivalent definition of fractional integral on spaces of homogeneous type is given.The behavior of the fractional integral operator in Triebel-Lizorkin space is discussed.     

Boundary properties for several singular integral operators in real Clifford analysis

On the basis of the Cauchy integral formulas for regular and biregular functions, we define some Cauchy-type singular integral operators. Then we discuss the Hlder continuous property of some singular integral operators with one integral variable. Then we divide a singular integral operator with two variables into three parts and prove its Hlder continuous property on the boundary.     

The solvability of some kinds of singular integral equations of convolution type with variable integral limits

In this paper, we discuss several classes of convolution type singular integral equations with variable integral limits in class $ H^*_1 $. By means of the theory of complex analysis, Fourier analysis and integral transforms, we can transform singular integral equations with variable integral limits into the Riemann boundary value problems with discontinuous coefficients. Under the solvability conditions, the existence and uniqueness of the general solutions can be obtained. Further, we analyze the asymptotic properties of the solutions at the nodes. Our work improves the Noether theory of singular integral equations and boundary value problems, and develops the knowledge architecture of complex analysis.     

On approximation properties of non-convolution type nonlinear integral operators

In the present paper we state some approximation theorems concerning pointwise convergence and its rate for a class of non-convolution type nonlinear integral operators of the form:Tλ (f;x) = B A Kλ (t,x, f (t))dt , x ∈< a,b >, λ∈Λ. In particular, we obtain the pointwise convergence and its rate at some characteristic points x0 of f as (x,λ ) → (x0,λ0) in L1 < A,B >, where < a,b > and < A,B > are is an arbitrary intervals in R, Λ is a non-empty set of indices with a topology and λ0 an accumulation point of Λ in this topology. The results of the present paper generalize several ones obtained previously in the papers [19]-[23].     

Bochner-Martinelli Formula for Higher Spin Operators of Several R6 Variables*

The higher spin operator of several R⁶ variables is an analogue of the ■-operator in theory of several complex variables.The higher spin representation of so₆(C)is ⊙^kC⁴ and the higher spin operator D_k acts on ⊙^kC⁴-valued functions.In this paper,the authors establish the Bochner-Martinelli formula for higher spin operator D_k of several R⁶variables.The embedding of R⁶ⁿ into the space of co...     

Boundary integral equations for bending of thermoelastic plates with transmission boundary conditions

The solution of an initial‐boundary value problem for bending of a piecewise‐homogeneous thermoelastic plate with transverse shear deformation is represented as various combinations of single‐layer and double‐layer time‐dependent potentials. The unique solvability of the boundary integral equations generated by these representations is proved in spaces of distributions. Copyright © 2009 John Wiley & Sons, Ltd.     

Boundary integral equation method in thermoelasticity: part II crack analysis

The boundary integral equation formulation of thermoelasticity problems from part I is applied to crack problems in both finite and infinite thermoelastic bodies. For a flat crack in an infinite body the normal and tangential crack opening displacement are decoupled. Transient and steady state problems of thermoelasticity, as well as stationary problems, are considered.     

A strong solution of a high-order mixed type partial differential equation with integral conditions

In this article, we study a mixed problem with integral boundary conditions for a high-order partial differential equation of mixed type. We prove the existence and uniqueness of a strong solution. The proof is based on energy inequality and on the density of the range of the operator generated by the considered problem.