报告人：王岁杰（湖南大学）

日期：2020年7月1日

时间：15:00-16:00

腾讯会议号：429 817 753（无密码）
https://meeting.tencent.com/s/A7LBMdRgThvx

报告摘要：At the Bowdoin College Summer 1971 NSF Conference on Combinatorics,  Gian-Carlo Rota posed the following question:  The minimal dependent sets of vectors in a space $V$ may be regarded as vectors in the derived space $\delta V$ over the same field by using the vectors of $V$ as a basis for $\delta V$.  Can this same sort of process be applied to the dependent sets of a matroid $\mathcal{M}$ to investigate the ``dependencies among dependencies"?  If so, what properties does $\delta\mathcal{M}$, the derived matroid, posses?'' In this talk, we will introduce the derived matroids and derived sequences of represented matroids and classify the derived sequences into three types: finite, cyclic, and divergent with complete characterizations.

报告人简介：王岁杰，理学博士，本科就读于武汉大学，硕士毕业于北京大学，2010年在香港科技大学取得博士学位，其后在香港科技大学和台湾中央研究院从事博士后研究，于2013年加入湖南大学，现为湖南大学数学院副教授，博士生导师。 研究领域涉及超平面配置，拟阵理论，杨表理论及其组合计数等，科研成果发表于J. Combin. Theory Ser. A, J. Combin. Theory Ser. B, Adv. in Appl. Math., Math. Proc. Camb. Phil. Soc 等杂志。

公司联系人：傅士硕

欢迎广大师生积极参与！