Statistics on Quasi-Stirling Permutations of Multisets and Partial Gamma-Positivity

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:严慧芳(浙江师范大学)
:2022-06-06 15:00
:腾讯会议ID:9478414036(密码:260172)

报告人:严慧芳(浙江师范大学)

时  间:66日下午15:00

地  点:腾讯会议ID9478414036(密码:260172

内容摘要:

In this talk, we will present some recent results on the enumerative polynomials of quasi-Stirling permutations of multisets with respect to the statistics of plateaux, descents and ascents, which generalizes several results obtained by Elizalde and solve two open problems posed by Elizalde. Moreover, we prove that the enumerative polynomials of quasi-Stirling permutations of multisets are partial gamma-positive, thereby confirming a recent conjecture posed by Lin, Ma and Zhang.

人简介:

严慧芳,2006年博士毕业于南开大学组合数学研究中心,现任浙江师范大学数学与计算机科学学院教授,博士生导师。主要研究组合结构的计数以及组合统计量方面的问题, J. Combin. Theory Ser. A  Adv in Appl. Math. , European J. Combin., J. Algebraic Combin.等杂志上发表论文30余篇。 先后主持国家自然科学基金3项(面上2项, 青年1项), 浙江省自然科学基金一项。

 

联系人:靳宇