My work is currently supported by the National Science Foundation  under Grant No. DMS-2153945;  and in the past  by the National Science Foundation   under Grant No. DMS-1854903, and the National Security Agency under Grant No. H98230-09-1-0055.

My current research interests mainly focus on Hadwiger’s conjecture and its related problems; Ramsey related problems (including  size of  co-critical graphs and Gallai-Ramsey numbers of graphs); Erdos-Lovasz Tihany conjecture; Star edge-colorings; and Turan numbers and  anti-Ramsey numbers of graphs when host graphs are planar graphs.


Journal Publications