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Displaying similar documents to “Koszul duality and equivariant cohomology.”

On G -disconnected injective models

Marek Golasiński (2003)

Annales de l’institut Fourier

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Let G be a finite group. It was observed by L.S. Scull that the original definition of the equivariant minimality in the G -connected case is incorrect because of an error concerning algebraic properties. In the G -disconnected case the orbit category 𝒪 ( G ) was originally replaced by the category 𝒪 ( G , X ) with one object for each component of each fixed point simplicial subsets X H of a G -simplicial set X , for all subgroups H G . We redefine the equivariant minimality and redevelop some results on the...