報(bào)告題目:Leavitt path algebras of bifurcation-splittings
報(bào)告人:李換換 副教授 安徽大學(xué)
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邀請人:楊丹丹
報(bào)告時(shí)間:2025年4月27日(周日) 9:00
報(bào)告地點(diǎn):南校區(qū)會議中心113會議室
報(bào)告人簡介:李換換,安徽大學(xué)數(shù)學(xué)科學(xué)學(xué)院副教授。2016 年博士畢業(yè)于中國科學(xué)技術(shù)大學(xué),導(dǎo)師陳小伍教授,2016 年至2019 年在澳大利亞西悉尼大學(xué)從事博士后研究工作。入選省級青年人才。已在J. Algebra, Ann. K-theory, J. Pure App. Algebra, Algebra Number Theory, Algebr. Represent. Theory 等期刊上發(fā)表學(xué)術(shù)論文二十余篇,已主持國家自然科學(xué)基金青年基金1 項(xiàng)。
報(bào)告摘要:For a given graph E and a bifurcation vertex v in E, we construct the new graph E[v] which is called a bifurcation-splitting of E. We establish an injective homomorphism f: LK(E) -→ LK(E[v]) of Leavitt path algebras over a field K as Z-graded algebras. We also give a combinatorics sufficient and necessary condition for this homomorphism to be an isomorphism of Z-graded algebras. It turns out that these two Leavitt path algebras are Z-graded isomorphic if and only if f is an isomorphism as Z-graded algebras.
主辦單位:數(shù)學(xué)與統(tǒng)計(jì)學(xué)院