Fusion 2-categories and a state-sum invariant for 4-manifolds
We introduce semisimple 2-categories, fusion 2-categories, and spherical fusion 2-categories. For each spherical fusion 2-category, we construct a state-sum invariant of oriented singular piecewise-linear 4-manifolds.
| Main Authors: | , |
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| Format: | Journal article |
| Language: | English |
| Published: |
American Mathematical Society
2023
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