3 citations · 5 across the 8 of their papers we have counts for
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math.RA1999
The cohomology structure of an algebra entwined with a coalgebra
Tomasz Brzezinski
Two cochain complexes are constructed for an algebra A and a coalgebra C entwined with each other via the map . One complex is associated to an A-bimodu…
math.RA1999
Deformation of Algebra Factorisations
Tomasz Brzezinski
A general deformation theory of algebras which factorise into two subalgebras is studied. It is shown that the classification of deformations is related to the cohomology of a cert…
math.QA1999
Coalgebra-Galois extensions from the extension theory point of view
Tomasz Brzezinski
Coalgebra-Galois extensions generalise Hopf-Galois extensions, which can be viewed as non-commutative torsors. In this paper it is analysed when a coalgebra-Galois extension is a s…