|
||||
Darboux transformations with tetrahedral reduction group and nonlocal symmetries
Date/Time: 10:50 07-Aug-2014
Abstract:
We study Lax-Darboux scheme which is invariant with respect to the tetrahedral
reduction group. We have found a generic and four degenerate elementary Darboux maps and corresponding differential-difference (D$\Delta $Es) and partial-deference (P$\Delta $Es) integrable systems. Some of these P$\Delta$Es have a reduction to a scalar 6-point equation, which can be regarded as a difference analogue of Kuprschmidt's KdV6 equation. Differential-difference equations are non-local symmetries of the corresponding partial-difference systems. We are making steps towards the extension of the Symmetry approach to the case of non-local symmetries. Attachments:
Authors
(no additional information) |
||||
© 2012, Landau Institute for Theoretical Physics RAS www.itp.ac.ru
Contact webmaster |