SOLVABILITY FOR m-POINT BOUNDARY VALUE PROBLEM AT RESONANCE WITH ONE-DIMENSIONAL p-LAPLACIAN

By using Mawhin's continuation theorem,the existence of solution for a class of m-point boundary value problem at resonance with one-dimensional p-Laplacian is obtained.An example is given to demonstrate the main result of the paper.     

奇异非线性p-Laplacian算子方程正解的存在性

通过应用范数形式的锥拉伸与压缩不动点定理，一类含有一维P—Laplacian算子的奇异非线性四点边值问题的正解的存在性被考查，尽管非线性项含有未知函数的一阶导数。     

R~N中带周期位势的超线性p-Laplacian方程的无穷多解

在非线性项f是关于u的奇函数,势函数是有界的周期函数且下界是正的,Sobolev嵌入缺乏了紧性和f不再满足（AR）条件下,运用临界点理论中的喷泉定理和集中紧性原则证明了R~N中具有周期势函数的一类超线性p-Laplacian方程存在无穷多非平凡解。     

含有一阶导数的一维p-Laplace方程的正解

通过利用积分方程全连续算子的不动点指数对含有一阶导数的一维p-L ap lace方程建立了一个存在定理.这个定理表明此p-L ap lace方程必有一个正解,只要非线性项在某个有界集合上的“最大高度”是适当的.     

一类具p-Laplacian算子的多点边值问题单调迭代正解的存在性

利用单调迭代的方法得到了一类具p-Laplacian算子的多点边值问题单调迭代正解的存在性,同时也得到了解的相应迭代序列.     

一类带p-Laplacian的Sturm-Liouville型四点边值问题多个正解的存在性

研究了一类带p-Laplacian的四点边值问题.通过运用锥上的不动点定理,我们得到了该类Sturm-Liouville型边值问题三个正解的存在性.     

带导数项的奇摄动非线性 Schrodinger方程孤波解的存在性及其集中性质

利用Lyapunov-Schmidt方法证明了带有一阶导数项和(V)α势函数的非线性Schrodinger方程半经典孤波解的存在性及其集中性质. 具体地讲,当相当于Planck常数的奇摄动参数趋于零时,证明了该非线性Schrodinger方程的孤波解存在并且这些解在其势函数的非退化临界点处集中. 研究的是椭圆型方程的奇摄动问题,方程带有一阶导数项是本文特征之一.     

一维p-Laplace耦合边值问题正解的存在性

本文通过构造Banach空间上的算子和不动点理论研究了一维p-Laplacian的耦合边值问题,得出该方程至少存在—个正解的条件.     

含非对称临界非线性项的p-Laplace方程的多解问题

本文考虑含非奇对称临界非线性项的p-Laplace方程Dirichlet问题。运用改进的集中列紧原理证明了在某些指数条件下非奇对称的临界非线性项仍能保证无穷多弱解的存在性。     

CAUCHY PROBLEM FOR ONE-DIMENSIONAL P-LAPLACIAN EQUATION WITH POINT SOURCE

We prove the existence, uniqueness and finite propagation of disturbance of continuous solutions to the Cauchy problem for one-dimensional p-Laplacian equation with point source.     

On contact equivalence of Abel cubic differential equations of second order

We study the geometry of cubic Abel differential equations on one-dimensional real curve. We prove that such an equation is the kernel of some nonlinear differential operator. This operator is defined by a cubic on the Cartan distribution on the space of 1-jets. Based on this observation, we construct a contact-invariant {e}-structure associated with a non-degenerate Abel equation and obtain contact classification of such equations.     

Two solutions to a nonlinear Neumann problem without asymptotic conditions

We use critical point theory to establish the existence of at least two solutions to a nonlinear Neumann problem involving the one-dimensional p-Laplacian without assuming asymptotic conditions at infinity on the nonlinearity.     

一类含有p-拉普拉斯算子的二阶边值问题的单调迭代正解（英文）

研究了一类含有p-拉普拉斯算子的微分方程积分边值问题.运用迭代技巧,给出了这一类边值问题的单调正解,值得感兴趣的是微分方程中的非线性项含有一阶导数.     

带跳跃非线性边界的p-Laplacian问题(英文)

利用Fadell与Rabinowitz提出的同调指标理论,研究了一类带不定权非线性边界的p-Laplacian特征值问题;更进一步,利用环绕定理,证明了一类带跳跃非线性边界的p-Laplacian问题非平凡解的存在性.     

一维p-Laplacian方程边值问题多解的存在性

利用Clark定理，研究了一维p-Laplacian方程边值问题多解的存在性，得到了这类边值问题至少有n对非平凡解的充分条件．     

Some properties of the generalized Jacobian elliptic functions III

Generalized Jacobian elliptic functions play an important role in study of some bifurcation problems involving one-dimensional p-Laplacian. This paper deals with concavity and monotonicity of those functions. Also, inequalities involving functions discussion are established. In particular, Wilker-type and Van der Corput inequalities are derived.     

Existence, Multiplicity and Infinite Solvability of Positive Solutions for One-Dimensional p-Laplacian

The existence, multiplicity and infinite solvability of positive solutions are established for some two-point boundary value problems of one-dimensional p-Laplacian. In this paper, by multiplicity we mean the existence of m solutions, where m is an arbitrary natural number.     

Schrödinger operators and associated hyperbolic pencils

For a large class of Schrödinger operators, we introduce the hyperbolic quadratic pencils by making the coupling constant dependent on the energy in the very special way. For these pencils, many problems of scattering theory are significantly easier to study. Then, we give some applications to the original Schrödinger operators including one-dimensional Schrödinger operators with L²-operator-valued potentials, multidimensional Schrödinger operators with slowly decaying potentials.     

p-Laplacian方程的Aubry-Mather集

本文通过引进合适的作用-角变量变换并结合新的估计方法,对p-Laplacian方程的Poincare映射应用推广的Aubry-Mather定理,证明了一类p-Laplacian方程的Aubry-Mather集的存在性.     

Asymptotic expansions for ornstein-uhlenbeck semigroups perturbed by potentials over banach spaces

An asymptotic expansion of Schilder-type integrals with general phase function on abstract Wiener spaces is given and good control on remainders is obtained. For Ornstein –Uhlenbeck semigroups perturbed by potentials on Banach spaces the asymptotic expansion is given in terms of explicitly discussed “classical orbits”, in the case of finitely many non-degenerate maxima of the phase function. A representation of the leading term by a solution of an infinite dimensional Sturm-Liouville problem is also provided