TY - JOUR AU - Yuan-Pin Lee AU - Hui-Wen Lin AU - Chin-Lung Wang TI - Flops, motives, and invariance of quantum rings JO - Annals of mathematics PY - 2010 SP - 243 EP - 290 VL - 172 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4007/annals.2010.172.243/ DO - 10.4007/annals.2010.172.243 LA - en ID - 10_4007_annals_2010_172_243 ER -