Volume 13 | Issue 4
Volume 13 | Issue 4
Volume 13 | Issue 4
Volume 13 | Issue 4
Volume 13 | Issue 4
In this paper we prove that the chromatic number of corona graph, CnΘk1,3 is 2 or 3, We also show that chromatic number of the two copies of Fan graph Fn by a path is 3, Further, we prove that the butterfly graph Bn,m which admits a proper coloring and its chromatic number is 3.