Abstract: In this paper, we
investigate odd graceful labeling for the graphs resulted from various graph
operations on given graphs. We prove that the graph and the
joint sum of two copies of even cycleadmit odd
graceful labeling. Moreover, we show that the graph obtained by identifying a
vertex of even cycle with the apex vertex of star produces an odd graceful graph. We
also prove that the arbitrary super subdivisions of path admit odd graceful labeling.
Keywords and phrases: graceful graphs, odd graceful graphs.
