Dr. Kexiang Xu

Department of Mathematics

College of Science

Nanjing University of Aeronautics and Astronautics, China

Associate Professor

Email: kexxu1221@126.com

Qualifications

2009 Ph.D., Nanjing Normal University, China

2003 M.S., Southeast University, China

2000 B.S., Qufu Normal University, China

Publications (Selected)

1. Kexiang Xu, Kinkar Ch. Das, Nenad Trinajstic, The Harary index of a graph, Springer, 2015.
2. Kexiang Xu, Jinlan Wang, Kinkar Ch. Das, Sandi Klavzar, Weighted Harary indices of apex trees and k-apex trees, Disc. Appl. Math. 189 (2015) 30-40.
3. Kexiang Xu, Hongshuang Liu, Kinkar Ch. Das, The Kirchhoff index of quasi-tree graphs, Zeitschrift  fűr Naturforschung 70A (2015) 135-139.
4. Kexiang Xu, Kinkar Ch. Das, Zhiqing Zheng, The minimal matching energy of (n,m)-graphs with a given matching number, MATCH Commun. Math. Comput. Chem. 73 (2015) 93-104.
5. Kexiang Xu, Kinkar Ch. Das, S. Balachandran, Maximizing the Zagreb indices of (n,m)-graphs, MATCH Commun. Math. Comput. Chem. 72 (2014) 641-654.
6. Kexiang Xu, Sandi Klavzar, Kinkar Ch. Das, Jinlan Wang, Extremal (n,m)-graphs with respect to distance-degree-based topological indices, MATCH Commun. Math. Comput. Chem. 72 (2014) 865-880.
7. Kexiang Xu, Kinkar Ch. Das, Extremal Laplacian-energy-like invariant of graphs with given matching number, Electronic Journal of Linear Algebra 26 (2013) 131-140.
8. Kexiang Xu, Kinkar Ch. Das, Extremal unicyclic and bicyclic graphs with respect to Harary index, Bulletin of the Malaysian Mathematical Sciences Society 36 (2013) 373-383.
9. Kexiang Xu, The smallest Hosoya index of unicyclic graphs with given diameter, Mathematical Communications 17 (2012) 221-239.
10. Kinkar Ch. Das, Kexiang Xu, Ivan Gutman, Comparison between Kirchhoff index and the Laplacian energy like invariant, Linear Algebra and its Applications 436 (2012) 3661-3671.
11. Kexiang Xu, Kinkar Ch. Das, Trees, unicyclic, and bicyclic graphs extremal with respect to multiplicative sum Zagreb index, MATCH Commun. Math. Comput. Chem. 68 (2012) 257-272.
12. Kexiang Xu, Hongbo Hua, A unified approach to extremal mutiplicative Zagreb indices for trees, unicyclic and bicyclic graphs, MATCH Commun. Math. Comput. Chem. 68 (2012) 241-256.
13. Kexiang Xu, Jianxi Li and Lingping Zhong, The Hosoya indices and Merrifield-Simmons indices of graphs with connectivity at most k, Appl. Math. Lett. 25 (2012) 476-480.
14. Kexiang Xu, Trees with the seven smallest and the eight greatest Harary indices, Disc. Appl. Math. 160 (2012) 321-331.
15. Kexiang Xu, Kinkar Ch. Das, On Harary index of graphs, Disc. Appl. Math. 159 (2011) 1631-1640.
16. Kexiang Xu, The Zagreb indices of graphs with a given clique number, Appl. Math. Lett. 24 (2011) 1026-1030.
17. Kexiang Xu, Lihua Feng, Extremal energies of trees with a given domination number, Linear Algebra and its Applications 435 (2011) 2382-2393.
18. Kexiang Xu, Nenad Trinajstic, Hyper-Wiener and Harary indices of graphs with cut edges, Utilitas Mathematica 84 (2011) 153-163.
19. Kexiang Xu, On the Hosoya index and Merrifield-Simmons index of graphs with a given clique number, Appl. Math. Lett. 23 (2010) 395-398.
20. Kexiang Xu, Baogang Xu, Some extremal unicyclic graphs with respect to Hosoya index and Merrified-Simmons index, MATCH Commun. Math. Comput. Chem. 62 (2009) 629-648.