Browsing by Author "Smith, Samuel Bruce"
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- ItemRealizing spaces as classifying spaces(Oberwolfach : Mathematisches Forschungsinstitut Oberwolfach, 2015) Lupton, Gregory; Smith, Samuel BruceWhich spaces occur as a classifying space for fibrations with a given fibre? We address this question in the context of rational homotopy theory. We construct an infinite family of finite complexes realized (up to rational homotopy) as classifying spaces. We also give several non-realization results, including the following: the rational homotopy types of CP2 and S4 are not realized as the classifying space of any simply connected, rational space with finite-dimensional homotopy groups.