报告题目：Modular classes in Poisson and Jacobi geometry
报 告 人：Aissa Wade
所在单位：Penn State University, USA
报告时间：2024年2月22日 21:00-22:00
报告地点：ZOOM Id：904 645 6677，Password：2024
会议链接：
https://zoom.us/j/9046456677?pwd=Y2ZoRUhrdWUvR0w0YmVydGY1TVNwQT09&omn=87511211646
报告摘要: The modular class of a Poisson manifold is an element of its first Poisson cohomology group, which measures the obstruction to the existence of a measure on this Poisson manifold that is invariant under all Hamiltonian diffeomorphisms The concept of a modular class was extended to general Lie algebroids by Evens, Lu and Weinstein. Recently, there have been various developments and applications of modular classes of Poisson manifolds and Lie algebroids. The main goal of this talk is to introduce modular classes in the more general setting of Jacobi geometry. We will first give a brief review of modular classes in Poisson geometry, and then we will discuss Jacobi manifolds, Jacobi algebroids, and Gerstenhaber Jacobi algebras. Finally, we will introduce modular classes of Jacobi manifolds and Jacobi algebroids.
报告人简介：Aissa Wade is a professor in the Mathematics Department at Penn State University. She was the Head of the African Institute for Mathematical Sciences (AIMS) center in Senegal from 2016 to 2018. Her research interests lie in Poisson geometry, contact geometry and mathematical physics.
