On Kneser Extensions
Barrera Mora, Fernando
1998
Pablo Lam-Estrada, Fernando Barrera-Mora and Gabriel Daniel Villa-Salvador, On Kneser Extensions, Journal of Algebra (201), 703-717 (1998).
Abstract
LetE/Fbe a finite separable extension such thatE = F(G) withF* ? G ? E*,G/F* a finite group, and such that there exists a 11 correspondence between the subfields of the extensionE/Fand the subgroups ofG/F*, butE/Fis notG-cogalois. A necessary and sufficient condition is given for the existence of another groupG?for the extensionE/Fto beG?-cogalois.
Related articles
International Journal of Pure and Applied Mathematics
Teaching Grashof's Law with Cabri Geometry: A Learning Task
Contrasting and Looking into Some Mathematics Education Frameworks
Square Roots and the Use of Technology in Math Learning
Foliation of the Phase Space for the Kepler Problem with Anisotropic Perturbations
RADICAL EXTENSIONS AND CROSSED HOMOMORPHISMS
Problem solving and use of digital technologies in the development of mathematical competencies.
FRACCIONES PARCIALES: ELEMENTOS PARA UNA DISCUSIÓN EN EL AULA