2 citations · 2 across the 3 of their papers we have counts for
4 papers
A codimension-5 Hopf bifurcation yielding 5 limit cycles in a SIRS epidemic model with nonlinear incidence rate
Pei Yu, Wanyue Tang, Yanni Zeng
In a recent paper published in the Journal of Differential Equations (384, 2024), Cui and Zhao investigated an SIRS epidemic model with the nonlinear incidence rate $\frac{kI^p}{1+…
Determining codimension of Bogdanov-Takens and Bautin bifurcations via simplest normal form computation
Pei Yu, Yanni Zeng, Maoan Han
In solving real-world problems, determining the codimension of Bogdanov-Takens (BT) and Bautin (generalized Hopf) bifurcations can be very challenging, even for simple two-dimensio…
BV solutions to a hyperbolic system of balance laws with logistic growth
Geng Chen, Yanni Zeng
We study BV solutions for a system of hyperbolic balance laws. We show that when initial data have small total variation on and small amplitude, and d…
Visualization of Four Limit Cycles in Near-Integrable Quadratic Polynomial Systems
Pei Yu, Yanni Zeng
It has been known for almost years that general planar quadratic polynomial systems can have four limit cycles. Recently, four limit cycles were also found in near-integrable…