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报告地点:报告地点:数学楼617室报告时间:2019年1月15日 下午17:00-18:00报告人: 广西师范大学唐高华教授报告题目:Nil-clean and unit-regular elements in formal matrix rings over the ring of integers报告摘要:An element in a ring is clean (or, unit-regular) if it is the sum (or, the product) of an idempotent and a unit, and is nil-clean if it is the sum of an idempotent and a nilpotent. Firstly, we show that...