Approximate identity
In mathematics, particularly in functional analysis and ring theory, an approximate identity is a net in a Banach algebra or ring (generally without an identity) that acts as a substitute for an identity element.
网站首页 情感咨询 情感美文 情感百科 情感生活 学习充电 旧版美文
依恋情感网英汉例句词典收录3870147条英语例句词条,基本涵盖了全部常用英语单词的释义及例句,是英语学习的有利工具。