In the paper,we discuss some properties of prolongation in which the voctor field X of the manifold M polongs to the Cotangent Bundle T *M,and the Prolongation of the Lie algebra of Lie groups.
文章讨论了流形M上的向量场X
其余切丛T*M上的拓展的几个性质,并讨论了李群上李代数的拓展。
的,长时间的;;,连,持;;In the paper,we discuss some properties of prolongation in which the voctor field X of the manifold M polongs to the Cotangent Bundle T *M,and the Prolongation of the Lie algebra of Lie groups.
文章讨论了流形M上的向量场X其余切丛T*M上的拓展的几个性质,并讨论了李群上李代数的拓展。
A slender prolongation of the receptacle between the carpels as a central axis, as in the fruits of some members of the Umbelliferae (Apiaceae) and the Geraniaceae.
果瓣柄 Carpophore 
两个心皮间的细长延伸，作为中轴，如某些伞形科和牻 牛儿苗科植物的果实。
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