Spectral extremal graphs for the bowtie

• Published in: Discrete mathematics Vol. 346; no. 12; p. 113680
• Main Authors: Li, Yongtao, Lu, Lu, Peng, Yuejian
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.12.2023
• Subjects: Spectral extremal problems; Spectral extremal problems

Let Fk be the (friendship) graph obtained from k triangles by sharing a common vertex. The Fk-free graphs of order n which attain the maximal spectral radius was firstly characterized by Cioabă, Feng, Tait and Zhang [Electron. J. Combin. 27 (4) (2020)], and later uniquely determined by Zhai, Liu and...