The class group of all cyclotomic integers
The class group of all cyclotomic integers
复制标题
所有分圆整数的类群
DOI:
10.1016/0022-4049(81)90086-4
复制
发表时间:
1981
期刊:
影响因子:
--
通讯作者:
A. Brumer
中科院分区:
文献类型:
--
作者:
A. Brumer
For each nz 1, let &,= e2ni’n and let O,= Z [[,,] be the ring of integers in the cyclotomic field K, of nth roots of unity. We denote 0,= li, m On= Un On the ring of all cyclotomic integers, the direct limit being taken with respect to the natural inclusions 0,-O, for n dividing m. For any commutative ring A, the group of isomorphism classes of projective modules of rank 1 is denoted by Pit (A) as usual.