Work
His definition of CW complexes gave a setting for homotopy theory that became standard. He introduced the idea of simple homotopy theory, which was later much developed in connection with algebraic K-theory. The Whitehead product is an operation in homotopy theory. The Whitehead problem on abelian groups was solved (as an independence proof) by Saharon Shelah. His involvement with topology and the Poincaré conjecture led to the creation of the Whitehead manifold. The definition of crossed modules is due to him. Whitehead also made important contributions in differential topology, particularly on triangulations and their associated smooth structures.
Read more about this topic: J. H. C. Whitehead
Famous quotes containing the word work:
“The woman and the genius do not work. Up to now, woman has been mankind’s supreme luxury. In all those moments when we do our best, we do not work. Work is merely a means to these moments.”
—Friedrich Nietzsche (1844–1900)
“Read the Bible. Work hard and honestly. And don’t complain.”
—Billy Graham (b. 1918)
“The lady—bearer of this—says she has two sons who want to work. Set them at it, if possible. Wanting to work is so rare a merit, that it should be encouraged.”
—Abraham Lincoln (1809–1865)