  The aim of this survey is to present the main important techniques and tools
from variational analysis used for first and second order dynamical systems of
implicit type for solving monotone inclusions and non-smooth optimization
problems. The differential equations are expressed by means of the resolvent
(in case of a maximally monotone set valued operator) or the proximal operator
for non-smooth functions. The asymptotic analysis of the trajectories generated
relies on Lyapunov theory, where the appropriate energy functional plays a
decisive role. While the most part of the paper is related to monotone
inclusions and convex optimization problems in the variational case, we present
also results for dynamical systems for solving non-convex optimization
problems, where the Kurdyka-Lojasiewicz property is used.
