定理1 主要运用了连续延拓构造了一个泛测度零集；
Theorem 1 constructs a set of universal measure zero using continuous extension;
定解问题的衔接条件要求延拓具有连续性。
The definite solutions connective condition asks for the continuation continuity.
由集值映射的拓扑度延拓理论，推导出了上半连续集值1 -集压缩映射的拓扑度。
According to the extensive theory of topological degree for set-valued mapping, the authors derive the topological degree for upper semicontinuous set-valued 1-set-contractive mapping.
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