Journal of Applied Mathematics 
Volume 2004 (2004), Issue 5, Pages 359-369
doi:10.1155/S1110757X04312076

On the Krall-type polynomials

R. Álvarez-Nodarse,1 J. Arvesú,2 and F. Marcellán2

 1Departamento de Análisis Matemático, Universidad de Sevilla, Apartado de Correos 1160, 41080 Sevilla, Spain; Instituto Carlos I de Física Teórica y Computacional, Universidad de Granada, Granada 18071, Spain
2Departamento de Matemáticas, Universidad Carlos III de Madrid, Avenida de la Universidad 30, Madrid 28911 Leganés, Spain
Received 10 December 2003; Revised 6 July 2004

Abstract

Using a general and simple algebraic approach, some results on Krall-type orthogonal polynomials and some of their extensions are obtained.