Natural Idempotence自然幂等性
idempotence preserving保幂等
idempotence law幂等律
generalized idempotence广义幂等
idempotence-preserving mappings保幂等
unary operation idempotence一目操作的幂等运算
idempotence idempotent matrix幂等矩阵
Retries and Idempotence重试和幂等性
law of idempotence幂等律
One of important techniques in thestudy of preserver problems is to reduce new preserver problems to the known ones,such as idempotence、rank one preserver and so on.
而做保持问题的一个常用技巧即把新的问题归结到一个已知的不变量的保持问题，例如幂等、秩1保持等。
参考来源 - M