TY - JOUR AU - Iwasa, Akira TI - Preservation of properties of a map by forcing JO - Commentationes Mathematicae Universitatis Carolinae PY - 2022 SP - 121 EP - 129 VL - 63 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.14712/1213-7243.2021.029/ DO - 10.14712/1213-7243.2021.029 LA - en ID - 10_14712_1213_7243_2021_029 ER -