K空间中一类凹与凸算子的不动点

THE FIXED POINT OF CONCAVE AND CONVEX OPERATION IN K SPACE

证明了Ｋ 空间中α凹增算子和－ α凸减算子的不动点，并讨论了下面形式的算子的不动点：Ａ＝ Ｂ＋ Ｃ，其中Ｂ是α凹增算子，Ｃ是－ α凸减算子。

This paper proved the fixed point of α concave increasing and α convex decreasing operation in K space. And proved the fixed point of the following operation:A=B+C, where B is α concave increasing operation, C is - α convex decreasing operation.