Missing solution in a relativistic Killingbeck potential
  Missing bound-state solutions for fermions in the background of a Killingbeck radial potential including an external magnetic and Aharonov-Bohm (AB) flux fields are examined. The correct quadratic form of the Dirac equation with vector and scalar couplings under the spin and pseudo-spin symmetries is showed and also we point out a misleading treatment in the literature regarding to bound-state solutions for this problem. 
Luis B. Castro and Angel E. Obispo
hep-th math-ph math.MP quant-ph