Corner Structure of Four-Dimensional General Relativity in the Coframe Formalism

Choi, Cordova, Hsin, Lam, Shao, https://arxiv.org/abs/2111.01139

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

Delaney, Kim, Plavnik. https://arxiv.org/abs/2107.11374

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