The Legendre equation and its self-adjoint operators

The Legendre equation has interior singularities at -1 and +1. The celebrated classical Legendre polynomials are the eigenfunctions of a particular self-adjoint operator in $L^2(-1,1)$. We characterize all self-adjoint Legendre operators in $L^2(-1,1)$ as well as those in $L^2(-infty,-1)$ and in...

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Bibliographic Details
Main Authors: Lance L. Littlejohn, Anton Zettl
Format: Article
Language:English
Published: Texas State University 2011-05-01
Series:Electronic Journal of Differential Equations
Subjects:
Online Access:http://ejde.math.txstate.edu/Volumes/2011/69/abstr.html