Tests for a strong electroweak sector at future e- e+ high-energy colliders

In this report the authors are going to review the general phenomenology at future e- e+ linear colliders (LCs) of the strong interactions associated to the electroweak symmetry-breaking problem. These predictions are derived from models of dynamical breaking which are based just on the symmetry structure of the electroweak breaking or its extensions but irrespectively of the underlying theory which is responsible for the breaking. Technicolor with a chiral symmetry flavor SU (2) x SU (2) is the simplest example for such dynamical breaking. This is a limited point of view. However it allows to get predictions which are general enough at least in a class of models of dynamical breaking