The p-nuclearity for reduced group Lp-operator algebras




时   间:2025年4月24日 14:00-16:00

地   点:数学楼102报告厅

主讲人:汪   镇 副教授(杭州师范大学)

主持人:王   勤 教授

讲座内容简介:

Let G be a discrete group. It is well known that the following is equivalent: (1) G is amenable; (2) the reduced group C*-algebra is nuclear; (3) the group von-Neumann algebra L(G) is semidiscrete. Let p>1. G. An, J.-J. Lee and Z.-J. Ruan introduced the p-nuclearity for Lp-operator algebras. They show that the reduced group Lp-operator algebra is p-nuclear and the p-pseudomeasure algebra is p-semidiscrete if G is amenable. In this talk, we will show that the following are equivalent: (1) G is amenable; (2) the reduced group Lp-operator algebra is p-nuclear; (3) the p-pseudomeasure algebra is p-semidiscrete. This answers an open problem raised by N. C. Phillips.

主讲人简介:

汪镇,杭州师范大学副教授。2018年博士毕业于华东师范大学数学科学学院,2022年至2024年在吉林大学数学学院从事博士后研究。主持国家自然科学基金青年项目、中国博士后基金面上项目。主要从事Lp-算子代数的研究,相关成果发表于Israel J. Math.(两篇)、Math. Z.等杂志。