偶度二部图的边可分拆为若干偶圈之并,且任意一个无向简单图 G,有|E(G)|-γ′s (G)为偶数。本文确定了联图 Pm ∧ Pn 的符号星控制数。%Based on the sum of several even cycles in which each even bipartite graph edge divided by and any simple undi-rected graph: |E(G) |-γ′s (G) equals even,the authors make a conclusion that the signed star domination numbers of join graph Pm ∧ Pn .
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