中文摘要：

本文证明DC函数最小化问题邻近点算法的一个收敛性定理,并对此问题提出一类非精确邻近点算法．

英文摘要：

In this paper we prove a convergence theorem of the proximate point algorithm for minimization of DC function, and propose a kind of inexact proximate point algorithm for the minimization problem.