报告题目: Planarity of Unit Graphs of Rings
报告人: 苏华东 (北部湾大学理学院教授)
报告时间:2021年12月8日(星期三)晚上8:00—9:00
报告地点:线上报告,腾讯会议号:363-449-637
报告摘要:The unit graph of a ring R, denoted by G(R), is a simple graph whose vertex set is R and two distinct vertices are adjacent if and only if their sum is a unit of R. In this talk, we mainly introduce the planarity of G(R). We completely characterize the rings whose unit graphs are planar. As applications, we classify all semipotent rings and semilocal rings using its unit graphs.
报告人简介:苏华东,北部湾大学理学院教授,硕士研究生导师。首届自治区基础教育教学指导专业委员会义务教育数学教学指导专委会委员,广西数学学会理事。曾主持或参加国家自然科学基金项目5项,主持完成广西自然科学基金项目3项,主持在研广西自然科学基金项目1项。发表论文50多篇,其中SCI收录28篇。