The existence of the minimal and maximal fixed points for order preserving set-valued operators on semi-ordered sets and semi-ordered topological spaces was analyzed.

讨论了半序集和半序拓扑空间中保序集值算子的最小与最大不动点的存在性。

youdao

This dissertation is devoted to the study of sup-type function on non-compact set and the first-order optimality conditions for generalized semi-infinite programming with inequality constraints.

本文主要研究了非紧致集上的极大值函数和带不等式约束的广义半无限规划。

youdao

But Berdych gave a performance of the very highest order to set up a semi-final meeting with Novak Djokovic.

BBC: Wimbledon 2010: Roger Federer stunned by Tomas Berdych