torus to coffee mug homotopy
93059
How to draw a coffee cup
141114
Question about a bijection between $\mathbb R$ and $\mathbb R \cup \{\infty\}$
156606
Universal covering spaces of homotopy equivalent spaces are homotopy equivalent
142698
Proving that the fundamental groups of two spaces with same homotopy type are isomorphic
98488
Wrapped hexagon topology
147752
Is the quotient map a homotopy equivalence?
4642
Morphing a "sheet of paper" into a torus
45779
Homfly polynomial for the Hopf Link
122665
Help finding the fundamental group of $S^2 \cup \{xyz=0\}$
136811
Orbit space of torus homeomorphic to mobius strip
157058
How to draw a torus
55064
Homology groups of torus
136202
Is a loop in $X$ based at $a\in X$ homotopic to its reverse loop?
77175
Proof that two spaces that are homotopic have the same de Rham cohomology
5540
Why aren't these loops homotopic?
120100
Hairy Ball Theorem: homotopy from the identity to the antipodal map
103081
Square-tiling a torus