arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2408.05949math.CO
收藏

p.q.-Baer $*$-环的强零因子图

Strong zero-divisor graph of p.q.-Baer $*$-rings

Anil Khairnar, Nana Kumbhar, B. N. Waphare

AI总结:

本文研究 p.q.-Baer $*$-环的强零因子图,用中心投影格中的最小中心投影给出割点存在条件,证明割点集构成完全子图,并刻画补图的连通性、直径、围长及图可补的环类。

摘要:

本文研究 p.q.-Baer $*$-环的强零因子图。我们确定了 p.q.-Baer $*$-环上的一个条件(用 $*$-环的中心投影格中的最小中心投影表示),使得其强零因子图包含一个割点。证明了 p.q.-Baer $*$-环的强零因子图的割点集构成一个完全子图。我们证明,p.q.-Baer $*$-环的强零因子图的补图是连通的当且仅当该 $*$-环至少包含六个中心投影。我们刻画了 p.q.-Baer $*$-环的强零因子图的补图的直径和围长。此外,我们还刻画了其强零因子图是补图的 p.q.-Baer $*$-环。

英文摘要:

In this paper, we study the strong zero-divisor graph of a p.q.-Baer $*$-ring. We determine the condition on a p.q.-Baer $*$-ring (in terms of the smallest central projection in a lattice of central projections of a $*$-ring), so that its strong zero-divisor graph contains a cut vertex. It is proved that the set of cut vertices of a strong zero-divisor graph of a p.q.-Baer $*$-ring forms a complete subgraph. We prove that the complement of the strong zero-divisor graph of a p.q.-Baer $*$-ring is connected if and only if the $*$-ring contains at least six central projections. We characterize the diameter and girth of the complement of a strong zero-divisor graph of a p.q.-Baer $*$-ring. Also, we characterize p.q.-Baer $*$-rings whose strong zero-divisor graph is complemented.

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。

↑