For an infinite class of exceptional number fields, F ; we prove that a map of Keune from to the 2-Sylow subgroup of the wild kernel of F is an isomorphism, and in all cases we give an upper bound for the kernel and cokernel of this map. We find examples which show that the map is neither injectiv
The 2-Sylow Subgroup of the Wild Kernel of Exceptional Number Fields
β Scribed by Kevin Hutchinson
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 158 KB
- Volume
- 87
- Category
- Article
- ISSN
- 0022-314X
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β¦ Synopsis
In this paper we derive results, for exceptional number fields, about the relationship between the wild kernel, the group of divisible elements in K 2 (F), and classgroups of cyclotomic extensions at the prime 2. We prove that the group of divisible elements in K 2 (F) is generated by Dennis Stein symbols, for any number field F which is not imaginary quadratic.
π SIMILAR VOLUMES
We clarify the relationship between higher Γ©tale wild kernels of a number field at the prime 2 and the Galois-coinvariants of Tate-twisted class groups in the 2-cyclotomic tower of the field. We also determine the relationship between the Γ©tale wild kernel and the group of infinitely divisible eleme