Ye Jiachang, a senior from College of Mathematics and Informatics, published an online research paper titled “Extremal polygonal cacti for bond incident degree indices” in SCI indexed Journal Discrete Applied Mathematics (5-Year Impact Factor: 1.008) . This paper constitutes the research finding of the project on Extremal Study on General Sum-connectivity Index, which is listed among the 2018 National Undergraduate Training Programs for Innovation and Entrepreneurship Project. The adviosor is Liu Muhuo, Associate Professor from Department of Mathematics. 

(reference: https://www.sciencedirect.com/science/article/pii/S0166218X18305821)

Source: College of Mathematics and Informatics

Translated by Chen Yu

Proofread by Yu Yunling