Normal indices in Nikishin systems

• Author(s): Branquinho, Amílcar ; Bustamante, J ; Foulquie Moreno, Ana Pilar ; López Lagomasino, Guillermo
• Date: 2003
• Persistent ID: http://hdl.handle.net/10773/8442
• Origin: RIA - Repositório Institucional da Universidade de Aveiro
• Subject(s): Hermite Padé approximation; Nikishin systems; AT systems; Normality
• Document Type: Article
• Language: English

Description

We improve the class of indices for which normality takes place in a Nikishin system and apply this in Hermite-Padé approximation of such systems of functions.