English

Compact Semisimple 2-Categories

Quantum Algebra 2023-10-27 v2 Category Theory

Abstract

Working over an arbitrary field, we define compact semisimple 2-categories, and show that every compact semisimple 2-category is equivalent to the 2-category of separable module 1-categories over a finite semisimple tensor 1-category. Then, we prove that, over an algebraically closed field or a real closed field, compact semisimple 2-categories are finite. Finally, we explain how a number of key results in the theory of finite semisimple 2-categories over an algebraically closed field of characteristic zero can be generalized to compact semisimple 2-categories.

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Cite

@article{arxiv.2111.09080,
  title  = {Compact Semisimple 2-Categories},
  author = {Thibault D. Décoppet},
  journal= {arXiv preprint arXiv:2111.09080},
  year   = {2023}
}

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