挠积相关论文
This paper gives a sufficient and necessary condition for twisted products tobe weak Hopf algebras, moreover, gives a de......
运用子流形理论从挠积角度研究了从实空间形式到四元欧氏空间的拉格朗日等距浸入,给出了实空间形式M^n(0)的挠积分解与相应的到四元欧......