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Ladder operators and differential equations for orthogonal polynomials

Ladder operators and differential equations for orthogonal polynomials

Under some integrability conditions we derive raising and lowering differential recurrence relations for polynomials orthogonal with respect to a weight function supported in the real line. We also derive a second-order differential equation satisfied by these polynomials. We discuss the Lie algebra generated by the generalized creation and annihilation operators. …