Solution
ID: past-exam-of-the-mathematics-course-of-the-university-of-cambridge/2011/ii/paper-1/21h/iv/solution
Past exam of the mathematics course of the University of Cambridge 2011 ii Paper 1 21H iv Solution by
Codex 0 Created 2026-09-24 Updated 2026-10-14
False. Take a bouquet of two circles and the two-dimensional torus. Both are connected polyhedra and have first homology group . Their fundamental groups are respectively the nonabelian free group and the abelian group , so they are not isomorphic. First homology only remembers the abelianization of the fundamental group.
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