一类非凸非光滑多目标分式规划问题的对偶

研究了一类非光滑多目标分式规划问题的对偶问题.首先,借助于Clarke广义梯度,引入了一类广义不变凸函数概念;然后,在此基础上,给出并证明了该对偶问题的弱对偶定理、强对偶定理和严格逆对偶定理.     

线性空间中集值映射向量优化问题的ε-真有效解

利用一种称为代数型闭包的向量闭包,讨论了线性空间中极值映射向量优化问题的ε-真有效解,在集值映射为广义向量似凸的假设下,建立了这种解的标量化定理和ε-Lagrange乘子定理.

Abstract：

The authors use a concept of algebraic type of closure which is called vector closure . Through this closure they discuss ε-properly efficient solutions of vector optimization problems with set-valued maps. Under the assumption of the generalized cone-subconvexlikeness for Set-valued maps, the authors obtain the scalarization theorem and the ε-Lagrange multipliers theorems for ε-properly efficient solutions of vector optimization problems with set-valued maps.     

Hilbert空间中平衡问题和不动点问题的弱收敛定理

在Hilbert空间中,给出关于寻找平衡问题解集和两族无限非扩张映射不动点集的公共元的Ishikswa迭代格式,并得出此迭代的弱收敛定理.

Abstract：

A new Ishikawa iteration scheme is proposed for finding a common element of the set of solutions of an equilibrium problem and the set of fixed points of two infinitely nonexpansive mappings in Hilbert space. A weak convergence theorem is established for this iteration.     

一类新的含A-单调映像的完全广义集值强非线性混合隐拟变分包含

在Hilbert空间中引入和研究了一类新的包含A-单调映像的完全广义集值强非线性混合隐拟变分包含.通过应用A-单调映像的预解算子技巧,构造了一个新的迭代算法来逼近此类变分包含的解.讨论了由此算法产生的迭代序列的收敛分析.

Abstract：

A new class of completely generalized set-valued strongly nonlinear mixed implicit quasi-variational inclusions involving A-monotone mapping is introduced and investigated in Hilbert spaces. A new iterative algorithm for approximating the solutions of this class of completely generalized set-valued strong nonlinear mixed implict quasivariational inclusions is constructed by applying resolvent operator technique for A-monotone mapp1ng. The convergence analysis of the iterative sequences generated by the algorithm is discussed.     

一类新的极值估计量

提出了一类新的极值指数估计量,证明了该估计量的相合性以及渐近性.

Abstract：

In this paper, a new class of estimator for the extreme value index is proposed, and the consistency and asymptotic property of this estimator are proved.     

一类五阶非线性演化方程的广义孤立波解和周期解

应用指数函数法,借助计算机代数系统获得了包括五阶KdV方程、Sawada-Kotera方程和Kaup-Kupershmit方程在内的一类五阶非线性演化方程的广义孤立波解和周期解.结果表明,指数函数法结合符号计算已成为解决数学物理中非线性演化方程的强有力工具.

Abstract：

In this paper,the exp-function method is used to obtain generalized solitary wave solutions and periodic solutions for a class of fifth-order nonlinear evolution equations,which include different forms of fifth-order KdV equations,Sawada-Kotera equations and Kaup-Kupershmit equations.The results show that the exp-function method,with the help of symbolic computation,provides a powerful mathematical tool for solving nonlinear evolution equations in mathematical physics.     

一类中立型微分方程周期解的存在性与唯一性

利用Krasnoselskii不动点理论,结合分析的方法,对一类中立型微分方程存在周期解进行定性与定量研究,获得了这类微分方程周期解存在性与唯一性的充分条件.

Abstract：

Using the analytical method and utilizing Krasnoselskii's fixed point theory, this paper qualitatively and quantitatively study the existence of the periodic solutions for a class of neutral differential equation, and obtains some sufficient conditions of existence and uniqueness of periodic solutions for this class equations.     

lp空间中严格伪压缩Mann迭代过程的弱收敛

证明了lp空间中M小迭代序列弱收敛到严格伪压缩映射的不动点的定理.

Abstract：

The purpose of this paper is to prove the weak convergence theorem of the MANN iteration sequence to a fixed point for a strict pseudo-contraction in lp space.     

对称正定线性互补问题的一种广义模方法

基于一种新的等价不动点方程,给出了一种广义模方法来求解线性互补问题,并在一定条件下,分析了此方法的收敛性并推导出压缩因子,最后用数值实验验证了新方法的有效性.

Abstract：

In this paper, we give a generalized modulus method to solve the linear complementarity problems based on a new equivalent fixed-point equation. Convergence for this new method is analyzed under suitable conditions.Moreover, the contraction factor of the method is derived. Finally, a numerical example is presented to illustrate the effectiveness of this new method.