  There is a review of the physical theories needing Dirac-Bergmann theory of
constraints at the Hamiltonian level due to the existence of gauge symmetries.
It contains:
  i) the treatment of systems of point particles in special relativity both in
inertial and non-inertial frames with a Wigner-covariant way of eliminating
relative times in relativistic bound states;
  ii) the description of the electro-magnetic field in relativistic atomic
physics and of Yang-Mills fields in absence of Gribov ambiguity in particle
physics;
  iii) the identification of the inertial gauge variables and of the physical
variables in canonical ADM tetrad gravity in presence of the electro-magnetic
field and of charged scalar point particles in asymptotically Minkowskian
space-times without super-translations by means of a Shanmugadhasan canonical
transformation to a York canonical basis adapted to ten of the 14 first-class
constraints and the definition of the Hamiltonian Post-Minkowskian weak field
limit.
  Review paper for a chapter of a future book
