A Study on $\alpha-$graceful Labeling of Spade Graph
Meera Meghpara, H. M. Karavadiya, V. J. Kaneria · International Journal of Mathematics And its Applications · 2021
In this paper we have derived a new graph named spade graph. We have proved two copies of spade graph joined by an arbitrary path is $\alpha-$graceful, $n$ copies of spade graph joined by any vertex is $\alpha-$graceful, path union of $n$ copies of spade graph is $\alpha-$graceful and open star of finite copies of spade graph is also $\alpha-$graceful.