Let $n$ and $k$ be integers such that $3leq 2k+ 1 leq n$.The generalized Petersen graph $GP(n, k)=(V,E) $ is the graph with $V={u_1, u_2,ldots, u_n}cup{v_1, v_2,ldots, v_n}$ and $E={u_iu_{i+1}, u_iv_i, v_iv_{i+k}: 1 leq i ...