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On the residue fields of henselian valued stable fields
被引:0
|作者:
Chipchakov, I. D.
[1
]
机构:
[1] Bulgarian Acad Sci, Inst Math & Informat, BU-1113 Sofia, Bulgaria
来源:
关键词:
primarily quasilocal field;
quasilocal field;
norm group;
Brauer group;
character group of a Galois group;
reduced part of an abelian group;
D O I:
暂无
中图分类号:
O [数理科学和化学];
P [天文学、地球科学];
Q [生物科学];
N [自然科学总论];
学科分类号:
07 ;
0710 ;
09 ;
摘要:
Let E be a primarily quasilocal field, M/E a finite Galois extension and D a central division E-algebra of index divisible by [M/E]. In addition to the main result of [5] this part of the paper shows that if the Galois group G(M/E) is not nilpotent, then M does not necessarily embed in D as an E-subalgebra. When E is quasilocal, we find the structure of the character group of its absolute Galois group; this enables us to prove that if E is strictly quasilocal and almost perfect, then the divisible part of the multiplicative group E* equals the intersection of the norm groups of finite Galois extensions of E.
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页码:471 / 478
页数:8
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