The study of existence of fixed point for contractive operators is extended to the set-valued case, and some fixed point theorems for set-valued contractive operators are proved.
将压缩算子不动点存在性研究推广到集值的情形，证明了几个满足压缩性质的集值算子不动点定理。
The study of existence of fixed point for contractive operators is extended to the set-valued case, and some fixed point theorems for set-valued contractive operators are proved.
将压缩算子不动点存在性研究推广到集值的情形，证明了几个满足压缩性质的集值算子不动点定理。
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