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Higher categories, colimits, and the blob complex

Morrison, Scott; Walker, Kevin


We summarize our axioms for higher categories, and describe the "blob complex." Fixing an n-category C, the blob complex associates a chain complex B*(W; C) to any n-manifold W. The zeroth homology of this chain complex recovers the usual topological quantum field theory invariants of W. The higher homology groups should be viewed as generalizations of Hochschild homology (indeed, when W = S1, they coincide). The blob complex has a very natural definition in terms of homotopy colimits along...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
Source: PNAS - Proceedings of the National Academy of Sciences of the United States of America
DOI: 10.1073/pnas.1018168108


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