Перегляд за автором "Grandati, Y."

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  • Confluent Chains of DBT: Enlarged Shape Invariance and New Orthogonal Polynomials 
    Grandati, Y.; Quesne, C. (Symmetry, Integrability and Geometry: Methods and Applications, 2015)
    We construct rational extensions of the Darboux-Pöschl-Teller and isotonic potentials via two-step confluent Darboux transformations. The former are strictly isospectral to the initial potential, whereas the latter are ...