A space built inductively by attaching n-cells D^n via attaching maps S^{n−1} → X^{(n−1)}; 'closure-finite, weak-topology'. Combinatorial model for most topological spaces of interest; enables cellular homology.
A space built inductively by attaching n-cells D^n via attaching maps S^{n−1} → X^{(n−1)}; 'closure-finite, weak-topology'. Combinatorial model for most topological spaces of interest; enables cellular homology.