Ping Yan

The qualitative behavior of a second-order system with zero diagonal coefficient

Mats Gyllenberg, Jifa Jiang, M. Gyllenberg, 2004 .

Anti-periodic solutions for a class of nonlinear second-order Rayleigh equations with delays

Xiang Lv, Ping Yan, Xiang Lv, 2010 .

Limit Cycles for Generalized Liénard-type and Lotka-Volterra Systems

Ping Yan, Ping Yan, 2005 .

Evolutionary branching and long-term coexistence of cycling predators: critical function analysis.

Stefan A H Geritz, Eva Kisdi, É. Kisdi, 2007, Theoretical Population Biology.

Limit cycles for competitor–competitor–mutualist Lotka–Volterra systems

Mats Gyllenberg, Yi Wang, M. Gyllenberg, 2006 .