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

Barrios Rolanía, Dolores; Branquinho, Amilcar; Foulquié Moreno, Ana Pilar

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 syste...


Dynamics and interpretation of some integrable systems via multiple orthogonal ...

Branquinho, Amílcar; Barrios Rolania, Dolores; Foulquie Moreno, Ana Pilar

High-order non-symmetric difference operators with complex coefficients are considered. The correspondence between dynamics of the coefficients of the operator defined by a Lax pair and its resolvent function is established. The method of investigation is based on the analysis of the moments for the operator. The solution of a discrete dynamical system is studied. We give explicit expressions for the resolvent ...


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