point of semicontinuity [数] 半连续点
lower semicontinuity 下半连续性
cone low-semicontinuity 锥下半连续
cone upper semicontinuity 锥上半连续
less strong semicontinuity 次强半连续
Hausdorff lower semicontinuity Hausdorff下半连续性
An almost lower semicontinuity for a set-valued mapping with image space being a topological vector space.
本文对像空间为一般拓扑向量空间的集值映射，给出了所谓几乎下半连续的概念；
Finally, under suitable assumptions, we obtain the upper semicontinuity and the lower semicontinuity of second-order adjacent derivatives for the weak perturbation maps.
最后，在恰当的假设条件下，获得了弱扰动映射的二阶邻接导数的上半连续和下半连续性。
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