general/homotopy-theory

The study of spectra

Algebraic construct classifying topological spaces

Homotopy operation

Set of mathematical conjectures proposed by Douglas Ravenel

Exact homotopy case

In mathematics, a topological construction

Spectral sequence

Homotopy invariant of maps between n-spheres

Concept in mathematics

Mathematical theory of topological spaces

Special kind of adjunction between categories named after Daniel Quillen

Continuous deformation between two continuous functions

How spheres of various dimensions can wrap around each other

Topological space with only one nontrivial homotopy group