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We define and study a certain class of spaces which includes p–completed classifying
spaces of compact Lie groups, classifying spaces of p–compact groups, and
p–completed classifying spaces of certain locally finite discrete groups. These
spaces are determined by fusion and linking systems over “discrete p–toral
groups”—extensions of (Z ∕ p∞)r by finite p–groups—in the same way that classifying
spaces of p–local finite groups as defined in our paper [The homotopy theory of fusion
systems, J. Amer. Math. Soc. 16 (2003) 779–856] are determined by fusion and
linking systems over finite p–groups. We call these structures “p–local compact
groups”.
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