| 1. | Every normal operator is trivially subnormal .
每一个正规算子显而易见地是次正规的。 |
| 2. | The cheapest way to get one is to invoke the spectral theorem and to conclude that normal operators always have non-trivial invariant subspaces .
取得这样结果的最省力的尝试是引用光谱定理而得到正规算子恒有非平凡不变子空间的结论。 |
| 3. | Generalized eigenfunction expansion concerning normal operators
与正常算子相关的广义特征函数展开 |
| 4. | You can override normal operator precedence by using parentheses
相乘，您可以通过使用括号来重写常规运算符优先级。 |
| 5. | 9 l ( h ) be a normal operator and , for every if is an isolated point in
9设aelp ）为正常算子且a一人其中l 。为一复数 |
| 6. | Then the following state - ments are equivalent : ( 1 ) 0 is an isolated point in ( 2 ) a is a finite rank operator ; is the spectral projector associated with . theorem4 . 5 let a be a compact normal operator , is an isolated point in prop4 . 13 let a be a compact normal operator , ao is an isolated point in a ( a )
定理乏止设a是紧正常算子，则下列条件等价： （ ）是o （ a ）的孤立卢、 ；仰a是有限秩算子； w 2n间a二一，其中灿1 ， …为” （用自所有的互不相同的孤立点，民： h ?马人一川为关于入的谱投影算子 |
