Thennakoon, T.R.D.S.M.; Perera, A.A.I.
(Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2020-01-22)
A graph 𝐺=(𝑉(𝐺),𝐸(𝐺)) with |𝑉(𝐺)| vertices is said to have prime labeling if there exist a bijective map 𝑓∶𝑉(𝐺) → {1,2,3,…,|𝑉(𝐺)|} such that for each edge 𝑒=𝑢𝑣 in 𝐸(𝐺), f (u) and f (v) are relatively prime. ...