借助近似代数上的原子及同余关系，证明了在适当选取余运算之后，粗集代数就构成伪补MS代数。
Based on the atoms and congruence relations of approximation algebra, it is proved that rough set algebra becomes pseudo-complemented ms algebra if proper complement operators are selected.
讨论近似空间中的孤点对其代数结构以及粗相等的清晰集刻画的影响。
The influences of isolated points on algebraic structure of approximate space and description of rough equality by crisp sets are discussed.
采用变分法求解薄板大挠度问题的高级近似解时将导致多元三次代数方程组。
The problem of solving large deflection plate by the variational method is changed into that of solving systems of cubic algebraic equations with multi-unknown quantities.
采用变分法求解薄板大挠度问题的高级近似解时将导致多元三次代数方程组。
The problem of solving large deflection plate by the variational method is changed into that of solving systems of cubic algebraic equations with multi-unknown quantities.
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