Speaker：Xiaxia Guan (Taiyuan University of Technology)

Time：2025-9-29 15:00

Location：Conference Room C610 at Administration Building at Haiyun Campus

Abstract:

In 2022, Bernardi, Kálmán and Postnikov introduced the polymatroid Tutte polynomial. They posed a question: Does there exist a deletion-contraction formula for the polymatroid Tutte polynomial? Recently, Guan, Jin and Kálmán solved this question in the affirmative by obtaining a deletion-contraction formula for the polymatroid Tutte polynomial. In this talk, we re-define the polymatroid Tutte polynomial by the aforementioned deletion-contraction formula and prove its well-definedness.