In this paper,the authors study the unchanged properties of π system,halfing,ring,field,monotonic system,λ system under a mapping f.
本文证明了π系,半环、环、域、单调系、λ系关于映射的不变性。
Usually high refractive indices ratio is believed the essential requirement to achieve wide band omnidirectional reflection with quarter-wave dielectric stacks, however in this paper, a high omnidirectional reflector with lower refractive indices ratio is achieved with a particularly designed dielectric stacks.
对于λ/4膜系,如欲实现宽带全向反射,宜采用高折射率比的镀膜材料,讨论了在低折射率比条件下的全向高反膜。
The frequency modulation effects of the probe field in three level Λ-system;
三能级Λ-系统探测光的频率调制效应研究
A series of λ-cut relation can determine only one fuzzy equivalence relation is presented.
把模糊商空间理论推广为模糊λ商空间理论,证明论域上的一个模糊等价关系一一对应于λ商空间上的一个归一化等腰距离函数;给定一个λ截关系序列,则唯一确定一个模糊等价关系。