Hongying Lin

collaborators

2 papers

math.CO2025

Extremal distance spectral radius of graphs with fixed size

Hongying Lin, Bo Zhou

Let $m$ be a positive integer. Brualdi and Hoffman proposed the problem to determine the (connected) graphs with maximum spectral radius in a given graph class and they posed a con…

math.CO2024

Spectral Turán problem for $K_{2, t}^{-}$ -free unbalanced signed graphs

Hongying Lin

We determine the maximum index and the signed graphs with the maximum index among all $K_{2, t}^{-}$ -free unbalanced signed graphs with fixed order for $t \geq 3$ , as well as…

Extremal distance spectral radius of graphs with fixed size

Spectral Turán problem for K2,t−​-free unbalanced signed graphs

Spectral Turán problem for $K_{2, t}^{-}$ -free unbalanced signed graphs