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math.AT2012
Polynomial functors from Algebras over a set-operad and non-linear Mackey functors
Manfred Hartl, Teimuraz Pirashvili, Christine Vespa
In this paper, we give a description of polynomial functors from (finitely generated free) groups to abelian groups in terms of non-linear Mackey functors generalizing those given…
math.AT2011
Cohomology with coefficients in stacks of Picard categories
Mamuka Jibladze, Teimuraz Pirashvili
Cohomology of a topological space with coefficients in stacks of abelian 2-groups is considered. A 2-categorical analog of the theorem of Grothendieck is proved, relating cohomolog…