Figure 3From: Multiple bifurcations and periodic coexistence in a delayed Hopfield two-neural system with a monotonic activation functionIntersection points of the nullclines illustrate the saddle-node bifurcation of the nontrivial equilibrium: (a) five equilibria for \(\gamma = 2.4\) and (b) nine equilibria for \(\gamma = 2.6\). The parameter values are given by \(a _{12} = 1\), \(a _{21} = 0.6\)Back to article page