给出Witt代数的q-变形的一个新的实现,并研究了它的中心扩张和第二上同调群.最后证明了Witt代数的q-变形的Hom—Leibniz中心扩张在Hom-Lie代数范畴内和Hom—Leibniz代数范畴内是一致的.
This paper investigates a new realization, the central extensional and the second cohomology group of the q-deformed Witt algebra. Finally it proves that the centralextensions of the q-deformed Witt algebra in the category of Hom-Lie algebra and in the category of Hom-Leibniz algebra coincide with each other.