Besonderhede van voorbeeld: 6133463342114214892

English

His mathematical work, some of which has been mentioned above, was wide ranging; topology , abelian groups and geometry.

Korean

어떤 것들은 이상에 이르기까지 광범위한했다; 토폴로지, 아벨 그룹과 기하학을 언급했다 그의 수학적 작품.