Graded Hermitian forms and Springer's theorem

被引:16
|
作者
Renard, J.-F. [1 ]
Tignol, J.-P.
Wadsworth, A. R.
机构
[1] Catholic Univ Louvain, Inst Matemat Pure & Appl, B-1348 Louvain, Belgium
[2] Univ Calif San Diego, Dept Math, La Jolla, CA 92093 USA
来源
INDAGATIONES MATHEMATICAE-NEW SERIES | 2007年 / 18卷 / 01期
关键词
D O I
10.1016/S0019-3577(07)80010-3
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
An analogue of Springer's theorem on the Witt group of quadratic forms over a complete discretely valued field is proved for Hermitian forms over division algebras over a Henselian field, including some cases where the residue characteristic is 2. Residue forms are defined by means of vector space valuations as Hermitian forms on the graded modules associated with the induced filtrations.
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页码:97 / 134
页数:38
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