Cohomology with coefficients in stacks of Picard categories
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🧮 math.AT
math.AG
keywords
coefficientscohomologystacksgroupsspaceabeliananalogappropriate
read the original abstract
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 cohomology of the space with coefficients in a 2-stage spectrum and the Ext groups of appropriate stacks.
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