homotopy theory, (∞,1)-category theory, homotopy type theory
flavors: stable, equivariant, rational, p-adic, proper, geometric, cohesive, directed…
models: topological, simplicial, localic, …
see also algebraic topology
Introductions
Definitions
Paths and cylinders
Homotopy groups
Basic facts
Theorems
A vector space/module over the field of rational numbers.
Equivalently, a torsion-free divisible group.
Last revised on June 17, 2022 at 16:49:43. See the history of this page for a list of all contributions to it.