It follows that a linear operator is a compact linear operator iff it an be approximated uniformly by a sequence of finiterank continuous homogeneous operators.
线性算子为紧线性算子必须且仅须它可由一列有限秩连续齐性算子一致逼近。
2
This paper discusses a method of selecting the boundary tree in edge finite element method, proposes the matrix rank method and introduces its applications.
介绍了棱边有限元法中选取边界树的原理和方法，提出了矩阵求秩法计算边界树，并结合实例说明其有效性．。
3
Two rank-finite matrices are same-inverse equivalent if and only if their rank equal is proved.