First interpret it combinatorially, and then derive it algebraically from the multinomial theorem . 先用组合方法阐述,然后从多项式定理利用代数方法推导。
We shall use algebraic methods to study graphs which are highly regular although this regularity is not expressed in terms of the automorphism group . 我们将用代数方法来研究高度正则的图,尽管这种正则性不是用自同构群来表达的。
The disadvantage of the algebraic approach is that many lines of print are needed to express what is conveyed almost instantaneously by a single diagram . 代数方法的缺点是,用一个图解在几乎瞬间就能表达的内容,它却需要用许多行文字才能说明白。
The computation of hitting sets with boolean formulas 用布尔代数方法计算最小碰集
Lie algebraic method of the molecular scattering 分子散射问题的李代数方法