  The spatially-dependent mass Dirac equation is solved exactly for attractive
scalar and repulsive vector Coulomb potentials including a tensor interaction
potential under the spin and pseudospin (p-spin) symmetric limits by using the
Laplace transformation method (LTM). Closed forms of the energy eigenvalue
equation and wave functions are obtained for arbitrary spin-orbit quantum
number Some numerical results are given too. The effect of the tensor
interaction on the bound states is presented. It is shown that the tensor
interaction removes the degeneracy between two states in the spin doublets. We
also investigate the effects of the spatially-dependent mass on the bound
states under the conditions of the spin symmetric limit and in the absence of
tensor interaction
