Small rational model of subspace complement
classification
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modelcomplementrationalringsmallsubspacearrangementsclasses
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In the paper we compute the ring strucure on the rational cohomology of a complex subspace complement. For that we construct a small differential graded subalgebra of the De Concini-Procesi wonderful model that is quasi isomorphic to this model. For two classes of arrangements explicit presentation of the ring is given.
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