自逆混合图是极其罕见的
Self-converse mixed graphs are extremely rare
摘要：
关于通常的邻接矩阵，一个混合图与它的逆是共谱的。因此，很容易看出，特征值唯一出现的混合图，直到同构，必须同构于它的逆。因此，人们自然会问，这是否是一种普遍现象。本文从理论上证明了自逆混合图的分数趋于零。
英文摘要：
A mixed graph is cospectral to its converse, with respect to the usual adjacency matrices. Hence, it is easy to see that a mixed graph whose eigenvalues occur uniquely, up to isomorphism, must be isomorphic to its converse. It is therefore natural to ask whether or not this is a common phenomenon. This note contains the theoretical evidence to confirm that the fraction of self-converse mixed graphs tends to zero.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
