On the homotopy classification of the extensions of a fixed map

On Adding Relations to Homotopy Groups

J. H. C. Whitehead · Annals of Mathematics · 1941 · 281 citations

Natural Sciences, Mathematics, Algebra +11

On the Homotopy Groups of the Union of Spheres

P. J. Hilton · Journal of the London Mathematical Society · 1955 · 266 citations

Natural Sciences, Mathematics, Topology +8

On topologies for function spaces

Ralph H. Fox · Bulletin of the American Mathematical Society · 1945 · 192 citations · Full text

Natural Sciences, Mathematics, Set Theory +10

On simply connected, 4-dimensional polyhedra

J. H. C. Whitehead · Commentarii Mathematici Helvetici · 1949 · 163 citations

Natural Sciences, Mathematics, Computational Geometry +5

A Generalization of the Hopf Invariant

George W. Whitehead · Annals of Mathematics · 1950 · 154 citations

Natural Sciences, Mathematics, Dynamical Systems +6