论文部分内容阅读
该文先提出了关序BANACH 空间的混合凹?凸算子的概念,并在序条件下讨论这类算子的不动点,得出了新的(耦合)不动点定理⒚“,”In this paper, we give the concept of mixed concave convex operators in semi order Banach space, and obtain new fixed point theorems of this kind of operators.