Lambda and mu-symmetries
Mathematical Physics
2016-11-23 v1 math.MP
Abstract
Lambda-symmetries of ODEs were introduced by Muriel and Romero, and discussed by C. Muriel in her talk at SPT2001. Here we provide a geometrical characterization of lambda-prolongations, and a generalization of these -- and of lambda-symmetries -- to PDEs and systems thereof.
Cite
@article{arxiv.math-ph/0502034,
title = {Lambda and mu-symmetries},
author = {G. Gaeta},
journal= {arXiv preprint arXiv:math-ph/0502034},
year = {2016}
}