Chinese 乘法群 Cited by user 書畫晝盡 on 04 May 2024 数学与群论中,乘法群指下列概念之一: * 域、环或运算中含有“乘法”的其他结构,可逆元素形成乘法下的群. 对域F,群是.
Portuguese Extensão algébrica Cited by user Mandorake on 22 Apr 2024 Em matemática, uma extensão algébrica é uma extensão de campo.
Vietnamese Quaternion Cited by user Mwcb on 13 Mar 2024 {|class="wikitable" align="right" style="text-align:center; margin-left:0.5em; max-width: 230px;".
Chinese 主理想整环 Cited by user Ascchrvalstr on 15 Dec 2023 在抽象代数中,主理想整环(principal ideal domain,简称PID)是其中所有理想都是主理想(由一个元素生成的理想)的整环. 一个更广泛的概念是主理想环,它指的是其中所有理想都是主理想的非零交换环,但一些作者(如布尔巴基)把主理想整环称为主理想环.