Figure 1From: Co-dimension two bifurcations analysis of a delayed tumor model with Allee effectBifurcation diagram of system (1) in \(\tau -r\) plane. Bifurcation curves: H (violet) Hopf; FD (orange) Fold; \(LPC\) (green) Limit point of cycles; TB (cyan) Torus. Special points: GH1 and GH2 (Bautin); ZH(zero-Hopf)Back to article page