Mathematics – K-Theory and Homology
Scientific paper
2009-05-05
Mathematics
K-Theory and Homology
Scientific paper
We study the non-abelian Hopf cohomology theory of Radford products with coefficients in a comodule algebra. We show that these sets can be expressed in terms of the non-abelian Hopf cohomology theory of each factor of the Radford product. We write down an exact sequence relating these objects. This allows to compute explicitly the non-abelian Hopf cohomology sets in large classes of examples.
Nuss Philippe
Wambst Marc
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