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 modern artist must live by craft and violence. His gods are violent gods.... Those artists, so called, whose work does not show this strife, are uninteresting.”
—Ezra Pound (1885–1972)
“Men were not intended to work with the accuracy of tools, to be precise and perfect in all their actions.”
—John Ruskin (1819–1900)
“Black women ... work because their husbands can’t make enough money at their jobs to keep everything going.... They don’t go to work to find fulfillment, or adventure, or glamour and romance, like so many white women think they are doing. Black women work out of necessity.”
—Wilma Rudolph (1940–1994)