Technical definition is a 3-Torus sandwich, defined as any sandwich that is homeomorphic to the Cartesian product of three circles.
Isn't it S_1 x S_1 x [0, 1] here though?
Technical definition is a 3-Torus sandwich, defined as any sandwich that is homeomorphic to the Cartesian product of three circles.
Isn't it S_1 x S_1 x [0, 1] here though?