報 告 人:莫小歡 教授
報告題目:On Finsler gradient Ricci solitons
報告時間:2024年9月6日(周五)下午3:30 - 4:30
報告地點:靜遠樓1506學術報告廳
主辦單位:數學與統計學院、數學研究院、科學技術研究院
報告人簡介:
莫小歡,北京大學數學科學學院教授。莫小歡教授長期從事幾何學的研究工作和教學工作,主要研究興趣是黎曼-芬斯勒幾何學和幾何變分學。已發表學術論文132篇,其中被SCI收錄100余篇,論文被引用達到787次(MathSciNet)。
報告摘要:
In this lecture we discuss a class of Finsler measure space whose weighted Ricci curvature satisfies Ric_infty=cF^2. This class contains all gradient Ricci solitons and Finsler Gaussian solitons. Thus Finsler measure spaces in this class are called Finsler gradient Ricci solitons. For a Randers measure space, we find sufficient and necessary conditions for this space to be a Finsler gradient Ricci soliton. In particular, we show that Finsler gradient Ricci solitons must have isotropic S-curvature. Then we explicitly construct new infinitely many n-dimensional complete Finsler gradient Ricci solitons. In particular, we find an eigenfunction and its eigenvalue for such spaces generalizing the result previously only known for the case of Gaussian shrinking soliton. Finally we give necessary and sufficient conditions on the coordinate functions for these spaces to be Euclidean measure spaces.