On the Computation of the Trace Form of Some Galois Extensions
On the Computation of the Trace Form of Some Galois Extensions
复制标题
某些伽罗瓦扩展的迹形式的计算
DOI:
10.1006/jabr.1996.6939
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发表时间:
1997
影响因子:
0.9
通讯作者:
Martin Krüskemper
中科院分区:
文献类型:
--
作者:
Christof Drees;M. Epkenhans;Martin Krüskemper
Abstract We investigate the trace form trL/K : L → K : x ↦ trL/Kx2of a finite Galois extensionL/K. In particular, we study 2-extensions of degree ≤ 16. Using some reduction theorems, these results yield a classification of nearly all trace forms of Galois extensions of degree ≤ 31. Finally, we study the trace form of a cyclotomic extension and of its maximal real subfield.