We study a selection method for a Nash feedback equilibrium of a one-dimensional linear-quadratic nonzero sum game over an infinite horizon : by introducing a change in the time variable, one obtains an associated game over a finite horizon T > 0 and with free terminal state. This associated game admits a unique solution which converges to a particular Nash feedback equilibrium of the original problem as the horizon T goes to infinity. Key Words. Linear-quadratic games. Nonzero sum differential games. Nash equilibria. Infinite horizon.
Cartigny, P., & Michel, P. (2002). On the selection of one feedback Nash equilibrium in discounted linear-quadratic games (CORE Discussion Papers 2002/34). https://hdl.handle.net/2078.5/33594