对K2(
4C2r)结构的估计
收稿日期: 2021-04-27
修回日期: 2021-05-12
网络出版日期: 2021-05-12
基金资助
国家自然科学基金(11771422)资助
Estimation of the structure of K2(
4C2r)
Received date: 2021-04-27
Revised date: 2021-05-12
Online published: 2021-05-12
4C2)=(C2)2,K2((
4C4)=(C2)3。借助相对K2群,通过计算Dennis-Stein符号给出K2((
4C2r)的一组简化的生成元,在此基础上给出K2((
4C2)和K2((
4C4)的基底,并得到K2((
4C8)=(C2)k,3≤k≤5,K2(
4C2r)=(C2)l,l≤2r-1+1。
关键词: K2群; 群环; Dennis-Stein符号
邓文超
,
唐国平
. 对K2(
4C2r)结构的估计[J]. 中国科学院大学学报, 2023
, 40(4)
: 453
-455
.
DOI: 10.7523/j.ucas.2021.0043
4C2)=(C2)2,K2(
4C4)=(C2)3 from a paper of Zhang Yakun and Tang Guoping(K2 for a kind of special finite group rings). In this paper, we got a set of simplified generators of K2(
4C2r) by calculating Dennis-Stein symbol in relative K2 group. Then we got the basis for K2(
4C2) and K2(
4C4), and we got to know K2(
4C8)=(C2)k, 3 ≤ k ≤ 5, K2(
4C2r)=(C2)l,l ≤ 2r-1+1。
Key words: K2 group; group ring; Dennis-Stein symbol
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