Mathematics and Statistics Navigate Home About Us About the Department Employment Opportunities Annual Reports Undergraduate Getting Started Courses and Placement Undergraduate Programs Resources Student Life Graduate Getting Started M.A. Program Ph.D. Program M.S. in Applied Statistics Program Statistics: Doctoral Minor Post-Baccalaureate Certificate in Statistics Student Life Resources Graduate Research Scholarships Courses People Research Applied Math Combinatorics, Group Theory, and Topology Mathematical Biology Number Theory Statistics Statistical Consulting Center Journals Undergraduate Research Graduate Research Events Helen Barton Lecture Series Colloquia AISC PDE Conference REU in Computational Statistics RMSC SERMON 2023 State Math Contest Summer School Calendar of All Talks and Events Past Events Services Which Course Should I Take ? Statistical Consulting Center Math Help Center Computing Services Student Listserve Departmental Documents Quantitative Methodology Series (QMS) < > Events Helen Barton Lecture Series Colloquia AISC PDE Conference REU in Computational Statistics RMSC SERMON 2023 Calendar of All Talks and Events Past Events Colloquium – Didong Li Didong Li University of North Carolina at Chapel HillColloquia https://sites.google.com/view/didongli/?pli=1 When Date: Wednesday, February 15, 2023Time: 4:00 pm - 5:00 pmLocation: