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A three-manifold is a space that locally looks like Euclidean three-dimensional space

12 votes
1 answer
902 views

Wanted: a nontrivial weakly inadmissible Heegaard diagram

This is a question asked by a student in my lecture. After drawing pictures for awhile, I thought it was a good one. I seek a nontrivial example of a pointed Heegaard diagram $(\Sigma,\mathbf{\alpha}, …
Jonathan Williams's user avatar