Cluster structures on spinor helicity and momentum twistor varieties
报告专家：李建荣（维也纳大学）
报告时间：2024年10月18日（星期五）16：00-17：00
报告地点：数学学院东409报告厅
报告摘要：We study cluster structures on spinor helicity and momentum twistor varieties which describe the kinematic spaces of massless scattering. Both varieties are certain partial flag varieties. We exhibit embeddings of the corresponding cluster algebras into cluster algebras of sufficiently large Grassmannians and show how the former is obtained by freezing certain cluster variables from the latter. This is joint work with Lara Bossinger.
专家简介：李建荣，博士毕业于兰州大学，现为维也纳大学研究员，在丛代数、量子仿射代数以及其在数学物理中的应用等方面取得了优异的研究成果，相关结果发表于Int Math Res Not,Selected Math, Math Zeit., Adv. Theor. Math. Phys,J AlGEBRA等国际著名数学期刊。
邀请人：付昌建
