標(biāo)題:On cleanness of von Neumann algebras
報(bào)告時(shí)間:2024年11月8日(星期五)9:00-10:00
報(bào)告地點(diǎn):線(xiàn)上騰訊會(huì)議(會(huì)議ID:798443672,會(huì)議密碼:241108)
主講人:吳文明
主辦單位:數(shù)學(xué)與統(tǒng)計(jì)學(xué)院
報(bào)告內(nèi)容簡(jiǎn)介:
A unital ring is called clean (resp. strongly clean) if every element can be written as the sum of an invertible element and an idempotent (resp. an invertible element and an idempotent that commutes). Prof. T. Y. Lam proposed a question: which von Neumann algebras are clean as rings? In this talk, we will give the answer about Lam’s question and show that all finite von Neumann algebras are clean and all separable infinite factors are clean. We also show that a von Neumann algebra is strongly clean if and only if it is a finite direct sum of finite type I von Neumann algebras.
主講人簡(jiǎn)介:
吳文明,重慶師范大學(xué)數(shù)學(xué)學(xué)院教授,2006年博士畢業(yè)于中國(guó)科學(xué)院數(shù)學(xué)與系統(tǒng)科學(xué)研究院,2008年清華大學(xué)博士后出站,重慶市巴渝學(xué)者特聘教授,重慶市學(xué)術(shù)帶頭人,電子科技大學(xué)兼職博士生導(dǎo)師,重慶市數(shù)學(xué)會(huì)常務(wù)理事,美國(guó)《數(shù)學(xué)評(píng)論》評(píng)論員,美國(guó)新罕布什爾大學(xué)國(guó)家公派訪(fǎng)問(wèn)學(xué)者。研究方向:泛函分析、算子代數(shù)。主持國(guó)家和省部級(jí)項(xiàng)目6項(xiàng),在J. Funct. Anal.,J. Operator Theory, Bull. Lond. Math. Soc.,Sci. China Math.等知名期刊發(fā)表論文20余篇。