Spanning Trees in Subcubic Graphs

Rui Li1, Qing Cui2
1Department of Mathematics, College of Sciences, Hohai University 1 Xikang Road, Nanjing, 210098, China
2Department of Mathematics, Nanjing University of Aeronautics and Astronautics, 29 Yudaojie Street, Nanjing 210016, PR China

Abstract

We prove that every connected subcubic graph G has two spanning trees \(T_1,T_2\) such that every component of \(G – E(T_1)\) is a path of length at most \(3\), and every component of \(G – E(T_2)\) is either a path of length at most \(2\) or a cycle.