On the sum of the first two largest signless Laplacian eigenvalues of a graph. - Zi-Ming Zhou; Chang-Xiang He; Hai-Ying Shan (Discret. Math., 2024)

Corrigendum to "On the sum of the first two largest signless Laplacian eigenvalues of a graph" [Discrete Math. 347 (2024) 114035]. - Zhibin Du; Zi-Ming Zhou; Hai-Ying Shan; Chang-Xiang He (Discret. Math., 2025)