刻划了具有P -正则自同态幺半群的二分图，讨论了字典序积图的自同态幺半群的P -正则性。
Bipartite graphs with P-regular endomorphism monoids are characterized. P-regularity of the endomorphism monoid of lexicographic product of graphs is discussed.
得到了一类自同态幺半群不是正则的图。
A family of graph which is not End-regular is constructed in this paper.
本文第一节给出了广义幂级数环(特别是幺半群环)的零因子图的基本性质。
In this paper, we firstly discuss the property of zero-divisor graph of rings of generalized power series in section 1.
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