In this paper,we first give a direct sum decomposition of Lie comodules,and then accord- ing to the Lie comodule theory,......

In this paper, all Lie bialgebra structures on the Lie algebras of generalized Witt type are considered. It is proved th......

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为探讨包含构造操作和观察操作的范畴数据类型上的子类型关系及性质,将双代数作为范畴数据类型上构造操作和观察操作的统一数学描......