General center conditions and bifurcation of limit cycles for a quasi-symmetric seventh degree system. - Chaoxiong Du; Yirong Liu (Comput. Math. Appl., 2008)

A class of ninth degree system with four isochronous centers. - Chaoxiong Du; Yirong Liu; Heilong Mi (Comput. Math. Appl., 2008)

The bifurcation of limit cycles in Zn-equivariant vector fields. - Chaoxiong Du; Yirong Liu; Haibo Chen 007 (Appl. Math. Comput., 2010)

Center problem and bifurcation behavior for a class of quasi analytic systems. - Chaoxiong Du; Haibo Chen 007; Yirong Liu (Appl. Math. Comput., 2011)

Limit Cycles Bifurcations for a Class of Kolmogorov Model in Symmetrical Vector Field. - Chaoxiong Du; Yirong Liu; Wentao Huang (Int. J. Bifurc. Chaos, 2014)

Three-Dimensional Hopf Bifurcation for a Class of Cubic Kolmogorov Model. - Chaoxiong Du; Qinlong Wang; Wentao Huang (Int. J. Bifurc. Chaos, 2014)

Limit Cycles in a Class of Quartic Kolmogorov Model with Three Positive Equilibrium Points. - Chaoxiong Du; Yirong Liu; Qi Zhang 052 (Int. J. Bifurc. Chaos, 2015)

A Class of Three-Dimensional Quadratic Systems with Ten Limit Cycles. - Chaoxiong Du; Yirong Liu; Wentao Huang (Int. J. Bifurc. Chaos, 2016)

Limit Cycle Bifurcation of Infinity and Degenerate Singular Point in Three-Dimensional Vector Field. - Chaoxiong Du; Yirong Liu; Qi Zhang 052 (Int. J. Bifurc. Chaos, 2016)