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Graded Witt ring and unramified cohomology

✍ Scribed by R. Parimala; R. Sridharan


Publisher
Springer
Year
1992
Tongue
English
Weight
856 KB
Volume
6
Category
Article
ISSN
0920-3036

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Let F denote a field of characteristic different from two. In this paper we describe the mod 2 cohomology of a Galois group G F (called the W-group of F) which is known to essentially characterize the Witt ring WF of anisotropic quadratic modules over F. We show that H\*(G F , F 2 ) contains the mod