The relative K2 of truncated polynomial rings

The relative K2 of truncated polynomial rings
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DOI:
10.1016/0022-4049(84)90041-0
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发表时间:
1984-12
影响因子:
0.8
通讯作者:
W. Kallen;J. Stienstra
W. Kallen;J. Stienstra
中科院分区:
数学2区
文献类型:
--
作者:
W. Kallen;J. Stienstra

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设W是正特征域上的本质有限型正则环.对于q&n> 1,我们计算在与R [t]/(P)中的理想(t”mod P)相关联的长精确K-理论序列中的边界映射a下,K1(R [t]/(t”))在Kz(R [t]/(r4),(t”mod t4))中的像。这个计算扩展了第二作者早期的工作,并证实了他的观点(见[8])。主要结果是通过方便的介绍相关的&群。
Let W be a regular ring essentially of finite type over a field of positive characteristic. For q&n> 1 we compute the image of K,(R [t]/(t”)) in Kz (R [t]/(r4),(t” mod t4)) under the boundary map a in the long exact K-theory sequence associated with the ideal (t” mod P) in R [t]/(P). This computation extends earlier work of the second author and confirms his conjectures (see [8]). The main result is obtained via convenient presentations for related &-groups.