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单词 NullSemigroup
释义

null semigroup


A left zero semigroup is a semigroup in which every element is a left zero element. In other words, it is a set S with a product defined as xy=x for all x,yS.

A right zero semigroup is defined similarly.

Let S be a semigroup. Then S is a null semigroup if it has a zero element and if the product of any two elements is zero. In other words, there is an element θS such that xy=θ for all x,yS.

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更新时间:2025/5/4 11:05:02