세미나 및 콜로퀴엄

학술회의 및 워크샵

학생 뉴스

북마크

게시판

동문 뉴스

Problem of the week

Suppose a group \(G\) has a finite index subgroup that maps onto the free group of rank 2. Show that every countable group can be embedded in one of the quotient groups of \(G\).