WHITEHEAD (J. H. C.) — WHITEHEAD JOHN HENRY CONSTANTINE (1904 1960) Né à Madras, neveu du philosophe et logicien Alfred North Whitehead, J. H. C. Whitehead fit ses études à Oxford; il y rencontra, en 1920, O. Veblen, avec qui il collabora pendant trois ans à Princeton … Encyclopédie Universelle
Whitehead link — J.H.C. Whitehead spent much of the 1930s looking for a proof of the Poincaré conjecture. In 1934, the Whitehead link was used as part of his construction of the now named Whitehead manifold, which refuted his previous purported proof of the… … Wikipedia
Whitehead torsion — In mathematics, Whitehead torsion is an invariant of an h cobordism in a Whitehead group, that is important in simple homotopy theory and surgery theory. It is named for J. H. C. Whitehead.Whitehead torsionSuppose that W is an h cobordism from M… … Wikipedia
Whitehead manifold — In mathematics, the Whitehead manifold is an open 3 manifold that is contractible, but not homeomorphic to R3. Henry Whitehead discovered this puzzling object while he was trying to prove the Poincaré conjecture.A contractible manifold is one… … Wikipedia
Eilenberg-Ganea conjecture — The Eilenberg Ganea conjecture is a claim in algebraic topology. It was formulated by Samuel Eilenberg and Tudor Ganea in 1957, in a short, but influential paper. It states that if a group G has cohomological dimension 2, then it has a 2… … Wikipedia
Poincaré conjecture — In mathematics, the Poincaré conjecture (French, pronounced|pwɛ̃kaʀe) [cite encyclopedia | encyclopedia=The American Heritage Dictionary of the English Language | title=Poincaré, Jules Henri | url=http://www.bartleby.com/61/3/P0400300.html |… … Wikipedia
J. H. C. Whitehead — Infobox Scientist name = J. H. C. Whitehead image width = 150px caption = John Henry Constantine Whitehead birth date = birth date|1904|11|11|df=y birth place = Madras (Chennai), India death date = death date and age|1960|5|8|1904|11|11|df=y… … Wikipedia
J. H. C. Whitehead — John Henry Constantine Whitehead Naissance 11 novembre 1904 Chennai ( Inde … Wikipédia en Français
John Henry Constantine Whitehead — J. H. C. Whitehead John Henry Constantine Whitehead (11 novembre 1904 – 8 mai 1960), connu sous le prénom d Henry, était un mathématicien britannique qui fut un des fondateurs de la théorie de l homotopie. Il est né à Madras en Inde et mort à… … Wikipédia en Français
Generalized Poincaré conjecture — In the mathematical area of topology, the term Generalized Poincaré conjecture refers to a statement that a manifold which is a homotopy sphere is a sphere. More precisely, one fixes a category of manifolds: topological (Top), differentiable… … Wikipedia
