Results 11 to 20 of about 775 (194)

Book Review: Galois module structure [PDF]

open access: diamondBulletin of the American Mathematical Society, 1998
A. Agboola
openalex   +2 more sources

Induced Hopf Galois structures and their local Hopf Galois modules [PDF]

open access: yesPublicacions Matemàtiques, 2022
The regular subgroup determining an induced Hopf Galois structure for a Galois extension $L/K$ is obtained as the direct product of the corresponding regular groups of the inducing subextensions. We describe here the associated Hopf algebra and Hopf action of an induced structure and we prove that they are obtained by tensoring the corresponding ...
Daniel Gil-Muñoz, Anna Rio
openaire   +6 more sources

Galois $p$-groups and Galois modules [PDF]

open access: yesRocky Mountain Journal of Mathematics, 2016
28 pages. To appear in Rocky Mountain Journal of Mathematics.
Chebolu, Sunil   +2 more
openaire   +3 more sources

Galois module structure of Galois cohomology and partial Euler-Poincare characteristics [PDF]

open access: greenJournal für die reine und angewandte Mathematik (Crelles Journal), 2004
Let F be a field containing a primitive pth root of unity, and let U be an open normal subgroup of index p of the absolute Galois group G_F of F. Using the Bloch-Kato Conjecture we determine the structure of the cohomology group H^n(U,Fp) as an Fp[G_F/U]-module for all n in N.
Nicole Lemire   +2 more
openalex   +5 more sources

Galois theory of module fields

open access: green, 2010
This thesis is about Galois theory.The development of a Galois theory for differential equations analogous to the classical Galois theory for polynomial equations was already an aim of S. Lie in the 19th century. The first step in this direction was the development of a Galois theory for linear differential equations due to E. Picard and E.
Florian Heiderich
openalex   +4 more sources

Frobenius modules and Galois representations [PDF]

open access: bronzeAnnales de l'Institut Fourier, 2009
Frobenius modules are difference modules with respect to a Frobenius operator. Here we show that over non-archimedean complete differential fields Frobenius modules define differential modules with the same Picard-Vessiot ring and the same Galois group schemes up to extension by constants.
B. Heinrich Matzat
openalex   +3 more sources

Galois modules arising from Faltings's strict modules [PDF]

open access: bronzeCompositio Mathematica, 2006
Suppose O is a complete discrete valuation ring of positive characteristic with perfect residue field. The category of finite flat strict modules was introduced recently by Faltings and appears as an equal characteristic analogue of the classical category of finite flat group schemes.
Victor Abrashkin
openalex   +4 more sources

Scaffolds and generalized integral Galois module structure [PDF]

open access: diamondAnnales de l'Institut Fourier, 2018
Let L/K be a finite, totally ramified p-extension of complete local fields with residue fields of characteristic p>0, and let A be a K-algebra acting on L. We define the concept of an A-scaffold on L, thereby extending and refining the notion of a Galois scaffold considered in several previous papers, where L/K was Galois and A=K[G] for G=Gal(L/K ...
Nigel P. Byott   +2 more
openalex   +4 more sources

Invariance of recurrence sequences under a galois group

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1996
Let F be a Galois field of order q, k a fixed positive integer and R=Fk×k[D] where D is an indeterminate. Let L be a field extension of F of degree k. We identify Lf with fk×1 via a fixed normal basis B of L over F. The F-vector space Γk(F)(=Γ(L)) of all
Hassan Al-Zaid, Surjeet Singh
doaj   +1 more source

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