孟宪昌 Organizer / 组织者 张翼华、薛金鑫Speaker / 主讲人 Xianchang Meng(Shandong University)Time / 时间 Wed. 7:30pm-8:30pm,Sept.21,2022Venue / 地点 Tencent Meeting:378-821-659 Abstract Erdős (1946) proposed the question of finding the...