A New Integrable Lattice Hierarchy and Its Two Discrete Integrable Couplings

一个新、有效的方法在二半直接的和谎言代数学的帮助下为分离 integrable 政变石楠被介绍。作为它的应用，与格子方程联系的二棵分离 integrable 政变石楠被得出。途径能被用来学习 solition 方程的分离层次的另外的分离 integrable 政变石楠。

A new and efficient way is presented for discrete integrable couplings with the help of two semi-direct sum Lie algebras. As its applications, two discrete integrable couplings associated with the lattice equation are worked out. The approach can be used to study other discrete integrable couplings of the discrete hierarchies of solition equations.