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Home > Whitehead

 
Whitehead can refer to:

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Topics: Whitehead Problem, Whitehead Institute, Whitehead Torsion...

Whitehead problemSet theory Group theory In group theory, the Whitehead problem is the following question: :Is every abelian group A with Ext1 A Z 0 a free abelian group? The condition Ext1 A Z 0 can be equivalently formulated as follows: whenever B is an abelian group anWhitehead InstituteFounded in 1984, the Whitehead Institute for Biomedical Research is a non-profit research and teaching institution located in Cambridge, Massachusetts. It is a quasi-autonomous division of the Massachusetts Institute of Technology, and its members and assWhiteheadWhitehead can refer to: acne Robert Whitehead, English engineer and enterpreneur who built the first torpedos in the 1860s Alfred North Whitehead, a British philosopher and mathematician Whitehead is a passerine bird.
Whitehead torsionIn mathematics, Whitehead torsion is an invariant defined in algebraic topology, that is important in simple homotopy theory and surgery theory.Whitehead theoremIn mathematics, the Whitehead theorem in homotopy theory states that if a continuous mapping f between topological spaces X and Y induces isomorphisms on all homotopy groups, then f is a homotopy equivalence provided X and Y are connected CW complexes.Whitehead manifoldIn mathematics, the Whitehead manifold or Whitehead continuum is a very special type of a three-dimensional topological space that is contractible, but not homeomorphic to the sphere. Henry Whitehead discovered this puzzling object while he was trying to
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