Qualitative properties of the dynamic trajectories, as well as conditions for stability of
the solutions as well as discrete-time algorithms can be found in Zhang and Nagurney (1995)
and in Nagurney and Zhang (1996) and the references therein. In particular, we note that
discrete-time algorithms such as those proposed in Nagurney and Zhang (1996) and the
references therein provide for a time discretization of the continuous time trajectories and
may also be interpreted as discrete-time adjustment processes.