Hamiltonian Indices of Generalized Petersen Graphs
Alspach's research has proved that Generalized Petersen Graphs are all Hamiltonian except for P(n,k)(n≡5(mod6);k= 2,(n-1)/2,(n+1)/2,n-2)and P(n,n/2)(n≡0(mod4);n≥8).On this basis,we consider the Hamiltonian indices of these two cases in this paper,and show that:the Hamiltonian indices of P(n,k)(n≡5(mod6);k=2,(n-1)/2,(n+1)/2,n-2)are all 1;the Hamiltonian indices of P(n,n/2)(n≡0(mod4);n≥8)are all 2.Now,the problem of Hamiltonian indices of Generalized Petersen Graphs is completely solved.
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