  We show how generalized parton distributions (GPDs) can be determined in the
case where hadrons are described in terms of their partonic degrees of freedom
through solutions of dynamical equations. We demonstrate our approach on the
example of two-quark bound states described by the Bethe-Salpeter equation, and
three-quark bound states described by three- and four-dimensional Faddeev-like
equations. Within the model of strong interactions defined by the dynamical
equations, all possible mechanisms contributing to the GPDs are taken into
account, and all GPD sum rules are satisfied automatically. The formulation is
general and can be applied to determine generalized quark distributions,
generalized gluon distributions, transition GPDs, nucleon distributions in
nuclei, etc. Our approach is based on the gauging of equations method.
