The maximal and minimal fixed points theorems for a class of T monotone operators in abstract spaces are proved, and some well known results are improved.

证明了抽象空间中一类T 单调算子的最大、最小不动点定理，改进了已知文献的结果。

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In this paper, we studied a class of t monotone increasing operators and obtained some fixed point theorems, generalized and improved many known results.

研究了一类t单调增算子，并给出了这类算子的一些不动点定理，改进了已有的有关结果。

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