OP-00854 Open Counting cospherical tuples in lattice cubes CO · AIM Open Applied Problems · cospherical points · incidence geometry · lattice points
OP-00951 Open Many collinear triples force a cubic curve with many points CO · collinear triples · cubic curves · incidence geometry · orchard problem
OP-00952 Open Many collinear four-point sets force five points on a line CO · collinear points · Erdős problems · incidence geometry · rich lines