TY - JOUR AU - Lai, Yi TI - Producing 3D Ricci flows with nonnegative Ricci curvature via singular Ricci flows JO - Geometry & topology PY - 2021 SP - 3629 EP - 3690 VL - 25 IS - 7 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.2140/gt.2021.25.3629/ DO - 10.2140/gt.2021.25.3629 ID - GT_2021_25_7_a6 ER -