TY - JOUR AU - H. Komiya TI - Convexity on a topological space JO - Fundamenta Mathematicae PY - 1981 SP - 107 EP - 113 VL - 111 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/fm-111-2-107-113/ DO - 10.4064/fm-111-2-107-113 LA - en ID - 10_4064_fm_111_2_107_113 ER -