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Parametrized cobordism categories and the Dwyer-Weiss-Williams index theorem

Raptis, George ; Steimle, Wolfgang


We define parametrized cobordism categories and study their formal properties as bivariant theories. Bivariant transformations to a strongly excisive bivariant theory give rise to characteristic classes of smooth bundles with strong additivity properties. In the case of cobordisms between manifolds with boundary, we prove that such a bivariant transformation is uniquely determined by its value at ...


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