d-Orthogonal polynomials and su(2)
Abstract
Two families of d-orthogonal polynomials related to su(2) are identified and studied. The algebraic setting allows their full characterization (explicit expressions, recurrence relations, difference equations, generating functions, etc.) of those polynomials. In the limit where su(2) contracts to the Heisenberg-Weyl algebra h1, these polynomials tend to the standard Meixner polynomials and d-Charlier polynomials, respectively.
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