报告题目：Combinatorics of gamma-positivity

报告人：林志聪教授，山东大学

报告时间：2024年6月24日（周一）15:30-16:30

报告地点：20-308

报告摘要: Gamma-positivity implies unimodality for palindromic polynomials. The idea behind it stems from work of Foata, Schutzenberger and Strehl on the Eulerian polynomials. I will present my work on this theme from the view point of permutation statistics, from q-Eulerian polynomials to Gessel’s gamma-positivity conjecture, to our recent exciting connections found between multiset Eulerian polynomials and weakly increasing trees, as well as some of my favorite conjectures.

报告人简介：林志聪，山东大学数学与交叉科学研究中心教授。主要从事计数组合学的研究，在J. Combin. Theory Ser. A、Combinatorica等权威期刊发表SCI学术论文40余篇。任中国数学会计算机数学专业委员会委员和中国运筹学会图论组合分会青年理事。