... point source radiator 点源辐射器 point spectrum 点谱,离散谱 point spread function 点扩散函数 ...
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...性变换(矩阵)的谱相当于全部的特征值,在无限维空间中,算子的谱的结构比这个复杂患上多,除了特征值组成的点谱(point spectrum),另有approximate point spectrum和residual spectrum。虽然复杂,可是,也更为有趣。
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pure point spectrum 纯离散谱
point spectrum type [数] 点谱型
approximate point spectrum [数] 近似点谱
Firstly, we give some notations. Subsequently, we introduce the definitions of elementary operators, numerical range,maximal numerical range, spectrum, approximate point spectrum and subnormaloperator etc.
首先我们介绍了用到符号表示的意义,接着引用了初等算子,数值域,极大数值域,算子的谱,近似点谱,次正规算子等概念。
参考来源 - 关于初等算子一些问题的研究·2,447,543篇论文数据,部分数据来源于NoteExpress
Anderson has shown that the one-dimensional disordered system has a pure point spectrum and all the electronic states are localized.
安德森的研究证明,一维无序系统的电子能谱是纯点谱,即所有的电子态都是局域态。
The occurrence of odd-parity shape oscillations in the saddle-point spectrum plays an important role in the interpretation of asymmetry and anisotropy in the fission process.
在裂变过程中,解释非对称性和非各向同性时,奇宇称形状振荡在鞍点谱中起主要作用。
They were expecting to see one certain frequency or one line in the spectrum at this point here.
他们预计会看到某个特定的频率,或者在这里的光谱中的一条线。
So, let's say they were expecting to see one certain frequency or one line in the spectrum at this point here.
比如说他们预计会看到某个特定的频率,或者在这里看到一个谱线。
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