On the relation between the full Kostant-Toda lattice and multiple orthogonal polynomials

Details On the relation between the full Kostant-Toda lattice and multiple orthogonal polynomials On the relation between the full Kostant-Toda lattice and multiple orthogonal polynomials

2009-11-15

arxiv.org/abs/0911.2856v1

Mathematics

Classical Analysis and ODEs

Scientific paper

The correspondence between a high-order non symmetric difference operator with complex coefficients and the evolution of an operator defined by a Lax pair is established. The solution of the discrete dynamical system is studied, giving explicit expressions for the resolvent function and, under some conditions, the representation of the vector of functionals, associated with the solution for our integrable systems. The method of investigation is based on the evolutions of the matrical moments.

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