An upper bound on the Laplacian spectral radius of the signed graphs. - Hong-Hai Li; Jiong-Sheng Li (Discuss. Math. Graph Theory, 2008)

Note on the normalized Laplacian eigenvalues of signed graphs. - Hong-Hai Li; Jiong-Sheng Li (Australas. J Comb., 2009)

The Laplacian spectrum of some digraphs obtained from the wheel. - Hong-Hai Li; Li Su; Liu-Rong Zheng (Discuss. Math. Graph Theory, 2012)

The minimum spetral radius of signless Laplacian of graphs with a given clique number. - Hong-Hai Li; Li Su; Jing Zhang (Discuss. Math. Graph Theory, 2014)

On the determinant of q-distance matrix of a graph. - Hong-Hai Li; Li Su; Jing Zhang (Discuss. Math. Graph Theory, 2014)

Further results on digraphs with completely real Laplacian spectra. - Hong-Hai Li; Li Su (Appl. Math. Comput., 2015)

On ordering of complements of graphs with respect to matching numbers. - Hong-Hai Li; Qianqian Wu; Ivan Gutman (Appl. Math. Comput., 2016)

On the k-matchings of the complements of bicyclic graphs. - Hong-Hai Li; Yi-Ping Liang (Discret. Math. Algorithms Appl., 2018)

A signless Laplacian spectral Erdős-Stone-Simonovits theorem. - Jian Zheng; Hong-Hai Li; Li Su (Discret. Math., 2026)