52 citations · 786 across the 59 of their papers we have counts for
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math.CA2013★ 44 cited
Analytic approximation of transmutation operators and applications to highly accurate solution of spectral problems
Vladislav V. Kravchenko, Sergii M. Torba
A method for approximate solution of spectral problems for Sturm-Liouville equations based on the construction of the Delsarte transmutation operators is presented. In fact the pro…
math.CA2013★ 32 cited
Spectral parameter power series for perturbed Bessel equations
Raul Castillo Perez, Vladislav V. Kravchenko, Sergii M. Torba
A spectral parameter power series (SPPS) representation for regular solutions of singular Bessel type Sturm-Liouville equations with complex coefficients is obtained as well as an…