Alphabeta MathFinite 2-Group Background Cochains and Consistency
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1 · Prerequisites
None. This page is self-contained.
2 · Logical flowchart
3 · Items
Definition
Finite 2-group background cochains
Theorem
Finite 2-group background gauge consistency
Definition
Finite background gauge 2-groupoid
Theorem
Coherence and stabilizers of finite background gauge 2-groupoids
Sources
- Francesco Benini, Clay Córdova, and Po-Shen Hsin, On 2-Group Global Symmetries and Their Anomalies, §2.3
- John C. Baez and Aaron D. Lauda, Higher-Dimensional Algebra V: 2-Groups, §8.3
- Sakura Schäfer-Nameki, ICTP Lectures on (Non-)Invertible Generalized Symmetries, §§2.5 and 2.8.1
- Baez and Lauda, Higher-Dimensional Algebra V: 2-Groups
- Benini, Cordova and Hsin, On 2-Group Global Symmetries and Their Anomalies