Eine Bemerkung zum Normenresthomomorphismus h: K*F/2 → H*(F, Z/2)

被引:1
作者
Pfister, A [1 ]
机构
[1] Johannes Gutenberg Univ Mainz, FB Math & Informat 17, D-55099 Mainz, Germany
关键词
Primary 12G05, 19DD45; Secondary 11E81;
D O I
10.1007/s00013-003-4694-0
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
An elementary Galois theoretic proof is given for the fact: An element b is an element of F is a norm from the extension F(roota) iff (a) U (b) = 0 in H-2 (F, Z/2). From this it follows easily that h exists. Comments about other proofs and applications to quadratic forms conclude the paper.
引用
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页码:272 / 284
页数:13
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