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Listar Artículos (Análisis Matemático) por autor "Costas Santos, Roberto Santiago"
Mostrando ítems 1-4 de 4
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Artículo
A q-analog of the Racah polynomials and the q-algebra SUq(2)
Álvarez Nodarse, Renato; Smirnov, Yuri F.; Costas Santos, Roberto Santiago (Springer, 2006-01)We study some q-analogues of the Racah polynomials and some of their applications in the theory of representation of quantum algebras.
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Artículo
Factorization method for difference equations of hypergeometric type on nonuniform lattices
Álvarez Nodarse, Renato; Costas Santos, Roberto Santiago (IOP Publishing, 2001-06-29)We study the factorization of the hypergeometric-type difference equation of Nikiforov and Uvarov on nonuniform lattices. An explicit form of the raising and lowering operators is derived and some relevant examples are given.
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Artículo
Factorization of the hypergeometric-type difference equation on the non-uniform lattices: dynamical algebra
Álvarez Nodarse, Renato; Atakishiyev Mektiyev, Natig; Costas Santos, Roberto Santiago (Institute of Physics, 2005-01-07)We argue that one can factorize the difference equation of hypergeometric type on the nonuniform lattices in general case. ...
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Artículo
Limit relations between q-Krall type orthogonal polynomials
Álvarez Nodarse, Renato; Costas Santos, Roberto Santiago (Elsevier, 2006)In this paper, we consider a natural extension of several results related to Krall-type polynomials introducing a modification ...