# bundle

A bundle is a map between two topological
spaces *A* and *B*, where the sets *f* ^{-1}(*b*)
for elements *b* of *B* (known as fibers), are all homeomorphic to a single space. The simplest example is the Möbius
band, for which *A* is the Möbius band, *B* is a circle, and the fibers are homeomorphic to
an interval on the real number line.