Cellular decomposition
In geometric topology, a cellular decomposition G of a manifold M is a decomposition of M as the disjoint union of cells.
The quotient space M/G has points that correspond to the cells of the decomposition. There is a natural map from M to M/G, which is given the quotient topology. A fundamental question is whether M is homeomorphic to M/G. Bing's dogbone space is an example with M not homeomorphic to M/G.Definition
Cellular decomposition of is an open cover with a function for which:
A cell complex is a pair where is a topological space and is a cellular decomposition of.
