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math.RA2021
Categories of modules, comodules and contramodules over representations
Mamta Balodi, Abhishek Banerjee, Samarpita Ray
We study and relate categories of modules, comodules and contramodules over a representation of a small category taking values in (co)algebras, in a manner similar to modules over…
math.CT2021
Fredholm modules over categories, Connes periodicity and classes in cyclic cohomology
Mamta Balodi, Abhishek Banerjee
We replace a ring with a small -linear category , seen as a ring with several objects in the sense of Mitchell. We introduce Fredholm modules over this cate…