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

Córdova, Ohmori, Rudelius, https://arxiv.org/abs/2202.05866

Del Zotto, García Etxebarria, Schäfer-Nameki, https://arxiv.org/abs/2203.10097

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

Bah, Bonetti, Leung, Weck, https://arxiv.org/abs/2112.07796