  The internal structure of all lowest-lying pseudo-scalar mesons with
heavy-light quark content is studied in detail using an algebraic model that
has been applied recently, and successfully, to the same physical observables
of pseudo-scalar and vector mesons with hidden-flavor quark content, from light
to heavy quark sectors. The algebraic model consists on constructing simple and
evidence-based \emph{ans\"atze} of the meson's Bethe-Salpeter amplitude (BSA)
and quark's propagator in such a way that the Bethe-Salpeter wave function
(BSWF) can then be readily computed algebraically. Its subsequent projection
onto the light front yields the light front wave function (LFWF) whose form
allows us a simple access to the valence-quark Parton Distribution Amplitude
(PDA) by integrating over the transverse momentum squared. We exploit our
current knowledge of the PDAs of lowest-lying pseudo-scalar heavy-light mesons
to compute their Generalized Parton Distributions (GPDs) through the overlap
representation of LFWFs. From these three dimensional knowledge, different
limits/projections lead us to deduce the related Parton Distribution functions
(PDFs), Electromagnetic Form Factors (EFFs), and Impact parameter space GPDs
(IPS-GPDs). When possible, we make explicit comparisons with available
experimental results and earlier theoretical predictions.
