Constructing integrable coupling systems of Hamiltonian lattice equations using semi-direct sums of Lie algebras

A hierarchy of Hamiltonian lattice equations associated with the relativistic Toda type system

“…Methods to construct the integrable couplings of the integrable systems of evolution equations have been widely reported (see e.g., Refs. [9][10][11][12][13][14][15] and references therein). In Ref.…”