4 citations · 5 across the 4 of their papers we have counts for
4 papers
Subgroup depth and twisted coefficients
Alberto Hernandez, Lars Kadison, Marcin Szamotulski
Danz computes the depth of certain twisted group algebra extensions in Comm. Alg. (2011), which are less than the values of the depths of the corresponding untwisted group algebra…
Galois theory for H-extensions
Marcin Szamotulski
We show that there exists a Galois correspondence between subalgebras of an H-comodule algebra A over a base ring R and generalised quotients of a Hopf algebra H if both A and H ar…
Galois Theory for H-extensions and H-coextensions
Dorota Marciniak, Marcin Szamotulski
We show that there exists a Galois correspondence between subalgebras of an H-comodule algebra A over a base ring R and generalised quotients of a Hopf algebra H. We also show that…
Galois Theory of Hopf Galois Extensions
Dorota Marciniak, Marcin Szamotulski
We introduce Galois Theory for Hopf-Galois Extensions proving existence of a Galois connection between subalgebras of an H-comodule algebra and generalised quotients of the Hopf al…