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math.RA2003
Galois comodules
Tomasz Brzezinski
Galois comodules of a coring are studied. The conditions for a simple comodule to be a Galois comodule are found. A special class of Galois comodules termed principal comodules is…
math.RA2003
On comatrix corings and bimodules
Tomasz Brzezinski, Jose Gomez-Torrecillas
To any bimodule which is finitely generated and projective on one side one can associate a coring, known as a comatrix coring. A new description of comatrix corings in terms of dat…