Edge coloring of signed graphs


Speaker: Professor Luo Rong

Topic: Edge coloring of signed graphs

Date: September 23, 2022

Time: 9:00 a.m.

Tencent Meeting ID: 548-702-109 

Password: 220-923

Sponsors: School of Mathematics and Statistics, Institute of Science and Technology


In this talk, we introduce the Kac determinant for the Verma modules over the Virasoro algebra. As an applications we calculate some Kac determinants for some related Lie algebras and get some irreducibility criterions for some weight modules.

Brief Introduction of the Speaker: 

Luo Rong, Professor of Mathematics at West Virginia University. He received his BS and MS  from University of Science and Technology of China and his Ph.D from West Virginia University. His research interests include graph coloring, flows  and cycle covers of both signed and ordinary graphs. He published around 70 research articles.