【摘 要】
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A locally semicomplete digraph is a digraph D=(V,A) satisfying the following condi-tion for every vertex x∈V the D[O(x)] and D[I(x)] are semicomplete digraphs.
【机 构】
:
DepartmentofMathematicsNanjingUniversity,DepartmentofMathematicsZhejiangNormalUniversity.Jinhua32100