References:

Shota Komatsu´s [discussion]:

• General overview of exact g-functions: First 25 minutes of the talk by Joao Caetano in London Integrability Journal Club: https://www.youtube.com/watch?v=xDgMGuRXDys
• “A non-integrable quench from AdS/dCFT” https://arxiv.org/abs/1906.10714
• “Algebra of the infrared” https://arxiv.org/abs/1506.04087