【摘要】 研究了完全二部图及其局部边迁移图的边优美性.主要结果有:当（m,n）=1时,奇阶完全二部图K_m,n为边优美图的充要条件是m+n|mn+1.更多还原

【Abstract】 The edge-gracefulness of complete bipartite graphs and its edge-moved graphs is studied in this paper. The main result is that if (m,n) = 1,then complete bipartite graph Km,n with odd order is edge-graceful iff mn + 1=0 (mod m+n)更多还原