复Finsler流形上的Koppelman-Leray-Norguet公式

利用不变积分核(Berndtsson核),复Finsler度量和联系于Chern-Finsler联络的非线性联络,研究复Finsler流形上具有逐块光滑C~((1))边界的有界域上(p,q)型微分形式的积分表示,得到了(p,q)型微分形式的Koppelman-Leray-Norguet公式和■-方程的解．作为应用,利用复Finsler度量和联系于Chern-Finsler联络的非线性联络,给出了Stein流形上具有逐块光滑C~((1))边界的有界域上(p,q)型微分形式的Koppelman- Leray-Norguet公式以及■-方程的解,并且得到了Stein流形上实非退化强拟凸多面体上(p,q)型微分形式的积分表示式和■-方程的解．     

Stein流形q-凸域上的同伦公式和∂-方程

得到了Stein流形局部q-凸域上(r,s)型微分形式的同伦公式和局部q-凸域上(r,s)型(∂)-方程的解,Cⁿ空间的结果是它的特例。这个同伦公式在局部q-凸域上(∂)-方程的一致估计和CR-流形的全纯开拓上有重要应用。     

Stein流形上的Lewy方程

本文利用Stein流形上强拟凸域的全纯支撑函数,并使用Hermite度量和陈联络定义的Koppelman-Leray核,结合边界的流形结构特点,得到了强拟凸域边界上(p,q)型Lewy方程(b-方程)解的一种整体积分表示.     

Stein流形局部q-凸域上带权因子的同伦公式和(ē)-方程

本文得到了Stein流形局部q-凸域上(r, S)型微分形式的带权因子的同伦公式及其(ē)-方程的带权因子的解.     

极小超曲面上Laplace算子的谱

1 引言 设(M,g)是紧致n维定向Rieman流形,记A~2(M)表示M上的外q-形式所成的向量空间,此处q=0,1,…,n.以Spec~q(M,g)表示Laplace算子△在A~q(M)上的谱集。 Laplace算子谱理论的一个很重要的问题是,如何由谱来决定Riemann流形,即等谱的Riemann流形是否等距同构?这个问题早在1964年就由J.Milnor给出了否定的回答。他举出了2个16维等谱而不等距的Riemann流形的例子;此后又有许多作者举出了不同的反     

单位球面中具平行单位平均曲率向量的子流形

设M是n-维闭黎曼流形,等距浸入(n+p)-维单位球空间S^n+p,具有平行的单位平均曲率向量。若S≤min{2n/3,2(n-1)^1/2},其中S是M的第二基本形式长度的平方,则M是S^n+p的一个(n+1)-维全测地子流形Sⁿ⁺¹中的超曲面。     

具有无穷规范Schrdinger方程的概率处理

设D是R^d的有界正则区域,q∈K_d^log,f∈B(аD).本文给出了一个处理Schrdi-nger方程(△/2+q)U=0,U_lаD=f的概率方法,这个方法可以适用于(D,q)具有无穷规范的情形.     

一类非线性椭圆型方程的一个Liouville定理

设 (Mn,g)是一个 n维的完备黎曼流形 ,其 Ricci曲率满足 Ric M(x)≥ - A(1 r2 (x) ln2 (2 r(x) ) ) ,其中 A是非负常数 ,r(x)表示点 x∈ M到某固定点 x0 ∈ M的测地距离 .则 M上方程 Δu Su Kuα=0在下述条件“ (i)在 M上 S≤ 0 ;(ii)在 M上 K<0且有常数 a>0使在一个紧集之外 K≤ - a2 ;(iii)常数 α>1”下的 C2 -非负解只有零解 .     

线性非卷积型Volterra积分方程和积分微分方程的周期解

其中g,q,x,y,f∈R~n,A,C,D为n×n矩阵。假设A(t),f(t)在(-∞,∞)上连续,C,D当-∞>s,t<∞为连续。 本文的主要进展是建立了这些方程的周期解表达公式。在非卷积情况下,文献中仅见T.A.Burton[1]就方程(0.4)当D≡0时给出的一个周期解公式:     

复Finsler流形上的Koppelman-Leray公式

利用不变积分核(Berndtsson核)、复Finsler度量和联系于Chern-Finsler联络的非线性联络来研究复Finsler流形上的积分表示理论,得到了Koppelman公式和Koppelman-Leray公式,并给出了&#8706;-方程的解.     

A NEW FORMULA WITHOUT BOUNDARY INTEGRALS ON A STEIN MANIFOLD

A new Koppelman-Leray-Norguet formula of (p-1,q) differential forms for a strictly pseudoconvex polyhedron with not necessarily smooth boundary on a Stein manifold is obtained, and an integral representation for the solution of (?)-equation on this domain which does not involve integrals on boundary is given, so one can avoid complex estimates of boundary integrals.     

(-*)b-方程的Cs+ap,q-形式解及其Lsp,q估计

In this paper, by using holomorphic support function of strictly pseudoconvex domain on Stein manifolds and the kernel defined by DEMAILY J P and Laurent Thiebaut, we construct two integral operators Tq and Sq which are both belong to Cs+αp,q-1((**)D) and obtain integral representation of the solution of (p,q)-form (**)b-equation on the boundary of pseudoconvex domain in Stein manifolds and the Lsp,q extimates for the solution.     

UNIFORM ESTIMATES OF SOLUTIONS OF (δ)-EQUATION ON STEIN MANIFOLDS

By means of the Hermitian metric and Chern connection, Qiu [4] obtained the Koppelman-Leray-Norguet formula for (p, q) differential forms on an open set with C1 piecewise smooth boundary on a Stein manifold, and under suitable conditions gave the solutions of (δ)-equation on a Stein manifold. In this article, using the method of Range and Siu [5], under suitable conditions, the authors complicatedly calculate to give the uniform estimates of solutions of (δ)-equation for (p, q) differential forms on a Stein manifold.     

Oscillatory integral operators with homogeneous polynomial phases in several variables

We obtain L² decay estimates in λ for oscillatory integral operators Tλ whose phase functions are homogeneous polynomials of degree m and satisfy various genericity assumptions. The decay rates obtained are optimal in the case of (2+2)-dimensions for any m, while in higher dimensions the result is sharp for m sufficiently large. The proof for large m follows from essentially algebraic considerations. For cubics in (2+2)-dimensions, the proof involves decomposing the operator near the conic zero variety of the determinant of the Hessian of the phase function, using an elaboration of the general approach of Phong and Stein [D.H. Phong, E.M. Stein, Models of degenerate Fourier integral operators and Radon transforms, Ann. of Math. (2) 140 (1994) 703-722].     

THE PERMUTATION FORMULA OF SINGULAR INTEGRALS WITH BOCHNER-MARTINELLI KERNEL ON STEIN MANIFOLDS

Using the method of localization, the authors obtain the permutation formula of singular integrals with Bochner-Martinelli kernel for a relative compact domain with C(1) smooth boundary on a Stein manifold. As an application the authors discuss the regularization problem for linear singular integral equations with Bochner-Martinelli kernel and variable coefficients; using permutation formula, the singular integral equation can be reduced to a fredholm equation.     

有界域上具有离散全纯核的Koppelman公式与方程

D是C^n空间中具有逐块C(1)边界的有界域，该文建立了D上一个具有离散局部全纯核的(0，q)形式的Koppelman积分公式及其相应的方程解的积分表示和它的内闭一致估计式。     

Asymptotic properties of integral points (a1,a2), satisfying the congruence a1a2≡ l(q)

The results of I. M. Vinogradov and van der Corput regarding the number of integral points under a curve are generalized to the case when on the integral points (a₁,a₂) one imposes the additional condition a₁,a₂ ≡ l(mod q). A corollary is an asymptotic formula for $$\sum\limits_{z = 1}^p {\tau \left( {z^2 + D} \right)} $$ with the remainder O(P^5/6+ε) instead of Hooley's estimate O(P^8/9+ε). It is shown how with the aid of the spectral theory of automorphic functions one can bring the estimate to O(P^2/3+ε).     

Stein流形上一个带有算子映射函数的积分公式

本文得到Ｓｔｅｉｎ流形上一个带有算子映射函数Ｓ（ｚ，ζ）和实参数的积分公式，由这个公式不但可以推出Ｓｔｅｉｎ流形上全纯函数和光滑函数的一些已有积分公式和它们相应的拓广式，而且还可以得到一些新的积分公式。     

Higher Order Boundary Integral Formula and Integro-Differential Equation on Stein Mainfolds

This paper deals with the boundary value properties and the higher order singular integro-differential equation. On Stein manifolds, the Hadamard principal value, the Plemelj formula and the composite formula for higher order Bochner–Martinelli type integral are given. As an application, the composite formula is used for discussing the solution of the higher order singular integro-differential equation.