A topic within Topology, itself one of 11 topics in that field and part of Mathematics.
2 works
J. H. C. Whitehead
Introduces CW complexes as the right combinatorial setting for homotopy theory, arguing that cellular attachment, not simplicial rigidity, is what makes a space's homotopy type computable.
link checked 17 Sept 2026J. Peter May
Takes the categorical and homotopy-theoretic viewpoint as primary, building singular homology from CW complexes and cellular approximation rather than from simplices, arguing this order better reflects the subject's structure.
link checked 17 Sept 2026