  The analogous quaternionic polynomials of a class of bivariate orthogonal
polynomials (arXiv: 1502.07256, 2014) introduced. The ladder operators for
these quaternionic polynomials also studied. For the quaternionic case, the
ladder operators are realized as differential operators in terms of the
so-called Cullen derivatives. Some physically interesting summation and
integral formulas are proved, and their physical relevance is also briefly
discussed.
