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nlin.SI2021★ 12 cited
Perturbative Symmetry Approach for Differential-Difference Equations
A. V. Mikhailov, V. S. Novikov, J. P. Wang
We propose a new method for solution of the integrability problem for evolutionary differential-difference equations of arbitrary order. It enables us to produce necessary integrab…
math-ph2021★ 7 cited
Hamiltonian structures for integrable nonabelian difference equations
Matteo Casati, Jing Ping Wang
In this paper we extensively study the notion of Hamiltonian structure for nonabelian differential-difference systems, exploring the link between the different algebraic (in terms…