Dichromatic state sum models for four-manifolds from pivotal functors

Submitted by Manuel Bärenz on Thu, 2015-12-31 - 13:43
Work type
Article
Collaborators
Publication status
Preprint

We develop a generalisation of the Crane-Yetter model, a topological state sum model of 4-manifolds. The new framework is used to show that the Crane-Yetter model for nonmodular ribbon fusion categories is stronger than signature and Euler characteristic.

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