Solution
= Solution
The annulus does not have the fixed-point property. The antipodal map
$$
x\longmapsto-x
$$
is a continuous self-map of the annulus and has no fixed point there.
= Solution
The annulus does not have the fixed-point property. The antipodal map
$$
x\longmapsto-x
$$
is a continuous self-map of the annulus and has no fixed point there.