pitchfork bifurcation;
homoclinic orbit;
periodic orbit;
local coordinate system;
D O I:
10.1016/j.na.2006.04.014
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
The problem of homoclinic bifurcation is studied for a high dimensional system with nonhyperbolic equilibria. By constructing local coordinate systems near the unperturbed homoclinic orbit, Poincare maps for the new system are established. Then the persistence of the homoclinic orbit and the bifurcation of the periodic orbit for the system accompanied with pitchfork bifurcation are obtained. Some known results are extended. (c) 2006 Elsevier Ltd. All rights reserved.