ON CONJECTURE OF HARARY-ROBINSON-WORMALD FOR ISOMORPHIC FACTRISATIONS OF DIRECTED GRAPH

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<正> An isomorphic favtorizatlon of a digraph D=(V, X) is a partition {X1, X2, …, Xt} of the are set X such that
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我院从1982年1月至1991年12月对高危前列腺增生症患者用倒行前列腺摘除术,手术效果满意。现报告如下。临床资料一、一般情况年龄61~89岁,平均69.7岁。病史半年至20年,平均3.2年。入