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We develop machinery enabling us to show that suitable G-spaces, including the equivariant version of BF , are equivariant infinite loop spaces. This involves a "recognition principle" for systems of spaces which behave formally like the system of fixed sets of a G-space; that is, we give a necessary and sufficient condition for such a system to be(More)
Biological systems routinely solve problems involving pattern recognition and feature extraction. Such problems do not appear to admit similarly routine algorithmic solutions; the power of biological systems in this regard apparently arises from nonalgorithmic dynamics. It is our intention to explore, and to develop principles of, functional characteristics(More)
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