%0 Journal Article %T Factorization method for difference equations of hypergeometric type on nonuniform lattices %A R. ¨˘lvarez-Nodarse %A R. S. Costas-Santos %J Mathematics %D 2010 %I arXiv %R 10.1088/0305-4470/34/27/306 %X 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. %U http://arxiv.org/abs/1003.5279v1