最終更新日：2025/12/02
We proved that a semi-transitive graph contains a finite vertex set S such that for every vertex v there exists a vertex s in S and an injective homomorphism of the graph mapping s to v.
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We proved that a semi-transitive graph contains a finite vertex set S such that for every vertex v there exists a vertex s in S and an injective homomorphism of the graph mapping s to v.
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