Morita cohomology
Abstract
We consider two categorifications of the cohomology of a topological space X by taking coefficients in the category of differential graded categories. We consider both derived global sections of a constant presheaf and singular cohomology and find the resulting dg-categories are quasi-equivalent and moreover quasi-equivalent to representations in perfect complexes of chains on the loop space of X.
- Publication:
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Mathematical Proceedings of the Cambridge Philosophical Society
- Pub Date:
- January 2015
- DOI:
- 10.1017/S0305004114000516
- arXiv:
- arXiv:1404.1327
- Bibcode:
- 2015MPCPS.158....1H
- Keywords:
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- Mathematics - Algebraic Topology;
- Mathematics - Category Theory
- E-Print:
- 33 pages