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math.CT2020
An outline of obstruction theories of extensions via track categories
Mariam Pirashvili
Abelian track categories can be classified via the third Baues-Wirsching cohomology of small categories. This approach is used in this paper to compare and classify different gener…
math.CT2015
Schreier Theory of Track Categories
Mariam Pirashvili
This paper is a continuation of our study of non-abelian Baues-Wirsching cohomologies. In our previous paper, we defined second non-abelian cohomology H2(C;D) of a small category C…