Exploració per autor "Crespo Vicente, Teresa"
Ara es mostren els items 1-7 de 7
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Álgebra lineal y Geometría
(Universitat Politècnica de Catalunya, 1986)
Apunts
Accés obert -
From Galois to Hopf Galois: theory and practice
(2015-09)
Article
Accés obertHopf Galois theory expands the classical Galois theory by con- sidering the Galois property in terms of the action of the group algebra k [ G ] on K/k and then replacing it by the action of a Hopf algebra. We review the ... -
Hopf Galois structures on symmetric and alternating extensions
(2018)
Article
Accés obertBy using a recent theorem by Koch, Kohl, Truman and Underwood on normality, we determine that some types of Hopf Galois structures do not occur on Galois extensions with Galois group isomorphic to alternating or symmetric ... -
Induced Hopf Galois structures
(2016-07-01)
Article
Accés obertFor a ¿nite Galois extension K/k and an intermediate ¿eld F such that Gal(K/F)has a normal complement in Gal(K/k), we construct and characterize Hopf Galois structures on K/k which are induced by a pair of Hopf Galois ... -
Left braces of size 8 p
(2023)
Article
Accés obertWe describe all left braces aof size 8 p for an odd p diferent from 3 and 7. -
On the Galois correspondence theorem in separable Hopf Galois theory
(2016-01)
Article
Accés obertIn this paper we present a reformulation of the Galois correspondence theorem of Hopf Galois theory in terms of groups carrying farther the description of Greither and Pareigis. We prove that the class of Hopf Galois ... -
The Hopf Galois property in subfield lattices
(2016-01-01)
Article
Accés obertLet K/k be a finite separable extension, n its degree and (K) over tilde /k its Galois closure. For n <= 5, Greither and Pareigis show that all Hopf Galois extensions are either Galois or almost classically Galois and they ...
