TY - JOUR AU - Gregory Galloway TI - Some rigidity results for spatially closed spacetimes JO - Banach Center Publications PY - 1997 SP - 21 EP - 34 VL - 41 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/-41-1-21-34/ DO - 10.4064/-41-1-21-34 LA - en ID - 10_4064__41_1_21_34 ER -