On the 6d Origin of Non-invertible Symmetries in 4d

Bah, Bonetti, Leung, Weck, https://arxiv.org/abs/2111.01790

Ohmori, Tizzano, https://arxiv.org/abs/2112.13445

Kaidi, Ohmori, Zheng, https://arxiv.org/abs/2111.01141

 Plavnik, Schopieray, Yu, Zhang, https://arxiv.org/abs/2111.05228