All discretization schemes are organized into a lattice named discretization lattice after partial order relation, then the meet and join operations between discretization schemes are defined.
通过定义离散化方案之间的偏序关系以及交、并运算，将各种离散化方案组织成离散格。
2
This paper gives and analyses a general expression of the dispersion relation of one-dimensional lattice waves in simple harmonic approximation.
给出了在简谐近似下，一维格波色散关系的一般表达式，并对其结果进行了分析。
3
The auxiliary relation on complete lattice has important effect on the research to continuous lattice.