1Associate Professor in
2
*E-mail : drpshalini11@gmail.com
A graph G=(V,E) with p vertices and q edges is called Lehmer-4 mean graph, if it is possible to label vertices xεV with distinct label g(x) from 2,4,6,8,.….…... 2p in such a way that when each edge e = uv is labeled with
Star, Tree, Bistar, Graph