The 2-Sylow subgroup of K2OF for number fields F
The 2-Sylow subgroup of K2OF for number fields F
复制标题
数域 F 的 K2OF 的 2-Sylow 子群
DOI:
10.1016/j.jalgebra.2004.10.024
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发表时间:
2005-02
影响因子:
0.9
通讯作者:
Hourong Qin
中科院分区:
文献类型:
--
作者:
Hourong Qin
Let F be a quadratic number field. We give a criterion, via Hilbert symbols, for an element of order two in the tame kernel of F to be a fourth power in the tame kernel of F. The result can be applied to compute the 8-rank of the tame kernel of F and the Tate kernel of an imaginary quadratic number field. We list the 8-ranks of K2OFfor all quadratic number fields whose discriminants have exactly two odd prime divisors. In the case when F is an imaginary quadratic number field with the 8-rank of K2OF=0, the Tate kernel of F is given too. An application of our method to the maximal real subfield of a cyclotomic field is discussed. Numerical examples, in particular the examples of quadratic number fields F with 4-rank of K2OF= 8-rank of K2OF=2 illustrate our results.
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影响因子:
3.9
作者:
J. Rognes;C. Weibel;appendix by M. Kolster
通讯作者:
J. Rognes;C. Weibel;appendix by M. Kolster
DOI:
10.2307/3612223
发表时间:
1965-12
期刊:
--
影响因子:
--
作者:
O. O’Meara
通讯作者:
O. O’Meara
DOI:
10.1007/3-540-26598-8_7
发表时间:
2008-05
期刊:
Elementary Number Theory
影响因子:
--
作者:
Gove Effinger;G. Mullen
通讯作者:
Gove Effinger;G. Mullen
影响因子:
0.7
作者:
Q. Yue;K. Feng
通讯作者:
Q. Yue;K. Feng
DOI:
10.4153/cjm-1989-043-0
发表时间:
1989-10
期刊:
Canadian Journal of Mathematics
影响因子:
--
作者:
P. E. Conner;J. Hurrelbrink
通讯作者:
P. E. Conner;J. Hurrelbrink