Application of Two Delay Differential Equations in the Evolutionary Game of Public Goods Supply

Table 5

Analysis on the stability of equilibrium points.

Equilibrium points	TrJ symbol	detJsymbol	Equilibrium results
(0, 0)	Uncertain	−	Saddle point
(0, 1)	Uncertain	−	Saddle point
(1, 0)	Uncertain	−	Saddle point
(1, 1)	Uncertain	−	Saddle point
(, )	= 0	+	Center point