报告人:范久瑜(四川大学)
日期:2020年7月1日
时间:14:00-15:00
腾讯会议号:429 817 753(无密码)
https://meeting.tencent.com/s/A7LBMdRgThvx
报告摘要:Schubitopes were introduced by Monical, Tokcan and Yong as a specific family of generalized permutohedra. Important cases of Schubitopes include the Newton polytopes of Schubert polynomials and key polynomials. We develop a combinatorial rule to generate the vertices of Schubitopes. As an application, we show that the vertices of the Newton polytope of a key polynomial are generated by permutations in a lower interval in the Bruhat order, settling a conjecture of Monical, Tokcan and Yong. This is joint work with Peter L. Guo.
报告人简介:范久瑜,理学博士,四川大学数学学院副教授。博士毕业于南开大学组合数学中心,师从陈永川院士。曾于2017年至2018年期间访问美国伊利诺伊大学香槟分校(UIUC)。研究领域为代数组合学,目前的研究课题主要涉及Schubert演算相关的组合学,已在Math. Z., SIAM J. Disc. Math., European. J. Combin., J pure and appl algebra等学术刊物上发表SCI论文10余篇,主持国家自然科学基金和教育部博士点基金各一项。
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