·2,447,543篇论文数据，部分数据来源于NoteExpress
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。
It follows that a linear operator is a compact linear operator iff it an be approximated uniformly by a sequence of finite rank continuous homogeneous operators.
youdao
应用推荐
模块上移
模块下移
不移动