Graduate Program in Mathematics.Kanuni, Müge.Erey, Nursel.2023-03-162023-03-162011.MATH 2011 E75https://digitalarchive.library.bogazici.edu.tr/handle/123456789/15259Let H be a Hopf algebra which coacts to the right on A and let B be the subalgebra of coinvariants. The extension B A is said to be Hopf Galois if the canonical map ..... is a bijection. This work investigates this kind of extension for special coactions.30cm.Hopf algebras.Galois theory.ix, 77 leaves ;