Sun, Xiaoling; Gao, Yubin; Du, Jianwei; Xu, Lan On a conjecture of the harmonic index and the minimum degree of graphs. (English) Zbl 1499.05103 Filomat 32, No. 10, 3435-3441 (2018). MSC: 05C07 05C09 PDFBibTeX XMLCite \textit{X. Sun} et al., Filomat 32, No. 10, 3435--3441 (2018; Zbl 1499.05103) Full Text: DOI
Sun, Xiaoling; Gao, Yubin; Du, Jianwei; Xu, Lan Augmented Zagreb index of trees and unicyclic graphs with perfect matchings. (English) Zbl 1427.05078 Appl. Math. Comput. 335, 75-81 (2018). MSC: 05C12 92E10 05C40 05C90 PDFBibTeX XMLCite \textit{X. Sun} et al., Appl. Math. Comput. 335, 75--81 (2018; Zbl 1427.05078) Full Text: DOI
Du, Jianwei; Shao, Yanling; Sun, Xiaoling; Xu, Lan On the harmonic index and the average eccentricity of a graph. (English) Zbl 1368.05029 Util. Math. 102, 189-198 (2017). MSC: 05C07 05C15 PDFBibTeX XMLCite \textit{J. Du} et al., Util. Math. 102, 189--198 (2017; Zbl 1368.05029)