  Exact Green's functions related to Dirac particle submitted to the
combination of Aharonov-Bohm and Coulomb fields in (2+1) coordinate space are
analytically calculated via path integral formalism in both global and local
representations. The scattering normalized wavefunctions as well as the
corresponding continuous energy eigenvalues are extracted following this
approach. The interesting properties of the spinors are thus deduced after
symmetrization. According to the symmetric form for the Green's function, it is
shown that the equivalence with Dirac equation is undertaken with much ease.
Some particular cases are also considered.
