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math.CT2024
The cohomology objects of a semi-abelian variety are small
Sébastien Mattenet, Tim Van der Linden, Raphaël M. Jungers
A well-known, but often ignored issue in Yoneda-style definitions of cohomology objects via collections of -step extensions (i.e., equivalence classes of exact sequences of a gi…
math.CT2019★ 1 cited
An intrinsic approach to the non-abelian tensor product via internal crossed squares
Davide di Micco, Tim Van der Linden
We explain how, in the context of a semi-abelian category, the concept of an internal crossed square may be used to set up an intrinsic approach to the Brown-Loday non-abelian tens…