Let G be a graph and n be a positive integer. A spanning subgraph F of G is called a {1, 3, …, 2n-1} -factor if d_F(x)∈{1, 3, …, 2n-1} for all x∈ V(G). Here
§ I. Introduction In this paper we are looking for solutions of the following Hamiltonian system of second order: where x= (x<sub>1</sub>, x<sub>2</sub>) and
In this note, the necessary condition for short range soliton solution of generalized Koteweg de Vries (GKdV) equation is found out and proved by means of the P