1.11 Laguerre

Definition.

 

Orthogonality.

 

Recurrence relation.

 

Normalized recurrence relation.

 

where

Differential equation.

 

Forward shift operator.

 

Backward shift operator.

 

or equivalently

 

Rodrigues-type formula.

 

Generating functions.

 

 

 

Remarks. The definition (1.11.1) of the Laguerre polynomials can also be written as :

In this way the Laguerre polynomials can be defined for all . Then we have the following connection with the Charlier polynomials defined by (1.12.1) :

The Laguerre polynomials defined by (1.11.1) and the Hermite polynomials defined by (1.13.1) are connected by the following quadratic transformations :

and

In combinatorics the Laguerre polynomials with are often called Rook polynomials.

References. [1], [2], [3], [6], [9], [10], [12], [13], [18], [19], [31], [34], [39], [43], [49], [50], [52], [56], [64], [77], [79], [89], [91], [92], [95], [102], [103], [106], [107], [108], [109], [111], [114], [121], [123], [128], [130], [137], [138], [149], [154], [155], [158], [182], [184], [195], [196], [198], [199], [201], [202], [210], [214], [215], [222], [227], [231], [233], [239], [241], [244], [250], [253], [255], [268], [270], [273], [274], [284], [286], [287], [288], [291], [292], [301], [302], [306], [314], [316], [323], [329], [330], [332], [360], [367], [372], [373], [374], [375], [376], [388], [390], [394].




Last modified on June 17, 1998