Spectral parameter power series representation for solutions of linear system of two first order differential equations. - Nelson Gutiérrez Jiménez; Sergii M. Torba (Appl. Math. Comput., 2020)

Analytic approximation of transmutation operators for one-dimensional stationary Dirac operators and applications to solution of initial value and spectral problems. - Nelson Gutiérrez Jiménez; Sergii M. Torba (CoRR, 2020)