RADIO MEAN NUMBER OF SOME WHEEL RELATED GRAPHS

A Radio Mean labeling of a connected graph G is an injective map f from the vertex set V (G) to the set of natural numbers N such that for each distinct vertices u and v of G, d (u, v) + | f (u)+f (v) /2 | ≥ 1 + diam (G). The radio mean number of f, rmn (f), is the maximum number assigned to any vertex of G under the labeling f. The radio mean number of G, rmn (G) is the minimum value of rmn (f) taken over all radio mean labelings f of G. Here we have found the radio mean number of some graphs derived from wheels.