Comparing orders of Selmer groups

Sébastien Bosca

Displaying similar documents to “Comparing orders of Selmer groups”

Some results on local fields

Akram Lbekkouri (2013)

Annales UMCS, Mathematica

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Let K be a local field with finite residue field of characteristic p. This paper is devoted to the study of the maximal abelian extension of K of exponent p−1 and its maximal p-abelian extension, especially the description of their Galois groups in solvable case. Then some properties of local fields in general case are studied too.

Henselian Discrete Valued Fields Admitting One-Dimensional Local Class Field Theory

Chipchakov, I. (2004)

Serdica Mathematical Journal

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2000 Mathematics Subject Classification: 11S31 12E15 12F10 12J20. This paper gives a characterization of Henselian discrete valued fields whose finite abelian extensions are uniquely determined by their norm groups and related essentially in the same way as in the classical local class field theory. It determines the structure of the Brauer groups and character groups of Henselian discrete valued strictly primary quasilocal (or PQL-) fields, and thereby, describes the forms...

Dihedral extensions of Q of degree 21 which contain non-Galois extensions with class number not divisible by l

Kiyoaki Iimura (1979)

Acta Arithmetica

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Factorisability and wildly ramified Galois extensions

David J. Burns (1991)

Annales de l'institut Fourier

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Let $L / K$ be an abelian extension of $p$ -adic fields, and let $𝒪$ denote the valuation ring of $K$ . We study ideals of the valuation ring of $L$ as integral representations of the Galois group $Gal (L / K)$ . Assuming $K$ is absolutely unramified we use techniques from the theory of factorisability to investigate which ideals are isomorphic to an $𝒪$ -order in the group algebra $K [Gal (l / K)]$ . We obtain several general and also explicit new results.

Factorisability and the arithmetic of wildly ramified Galois extensions

D. J. Burns (1989)

Journal de théorie des nombres de Bordeaux

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Computation of the metaplectic kernel

Gopal Prasad, Andrei S. Rapinchuk (1996)

Publications Mathématiques de l'IHÉS

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Central and genus class fields and the Hasse norm theorem

Michael J. Razar (1977)

Compositio Mathematica

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On Galois cohomology and realizability of 2-groups as Galois groups II

Ivo Michailov (2011)

Open Mathematics

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In [Michailov I.M., On Galois cohomology and realizability of 2-groups as Galois groups, Cent. Eur. J. Math., 2011, 9(2), 403–419] we calculated the obstructions to the realizability as Galois groups of 14 non-abelian groups of order 2n, n ≥ 4, having a cyclic subgroup of order 2n−2, over fields containing a primitive 2n−3th root of unity. In the present paper we obtain necessary and sufficient conditions for the realizability of the remaining 8 groups that are not direct products of...