Higher dimensional algebras via colored PROPs
arXiv:0809.2161
Abstract
Starting from any unital colored PROP , we define a category of shapes called -propertopes. Presheaves on are called -propertopic sets. For we define and study -time categorified -algebras as -propertopic sets with some lifting properties. Taking appropriate PROPs , we obtain higher categorical versions of polycategories, 2-fold monoidal categories, topological quantum field theories, and so on.