TY - RPRT TI - Fragile Phases as Affine Monoids: Classification and Material Examples AU - Song, Zhi-Da (ORCID:0000000249875962) AU - Elcoro, Luis AU - Xu, Yuan-Feng AU - Regnault, Nicolas AU - Bernevig, B. Andrei PY - 2020 DO - 10.1103/physrevx.10.031001 UR - https://www.osti.gov/biblio/1635589 ID - 1635589 ER -