Covariant hodograph transformations between nonlocal short pulse models and AKNS system
arXiv:1712.08390
Abstract
The paper presents hodograph transformation between nonlocal short pulse models and the first member in the AKNS negative hierarchy (AKNS()). We consider real and complex multi-component cases. It is shown that the independent variables of the short pulse models and AKNS() that are connected via hodograph transformation are covariant in nonlocal reductions.