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math.GR2017
An algorithm to determine Hopf Galois structures
Teresa Crespo, Marta Salguero
A Hopf Galois structure on a finite field extension L/K is given by a finite cocommutative K-Hopf algebra and a Hopf action. In this paper we present an algorithm written in the co…
math.GR2017★ 2 cited
Hopf Galois structures on symmetric and alternating extensions
Teresa Crespo, Anna Rio, Montserrat Vela
By using our previous results on induced Hopf Galois structures and a recent result by Koch, Kohl, Truman and Underwood on normality, we determine which types of Hopf Galois struct…