In algebraic topology, a branch of mathematics, an orientation character on a group is a group homomorphism
- . This notion is of particular significance in surgery theory.
Read more about Orientation Character: Motivation, Twisted Group Algebra, Examples, Properties, See Also
Famous quotes containing the words orientation and/or character:
“Every orientation presupposes a disorientation.”
—Hans Magnus Enzensberger (b. 1929)
“The image cannot be dispossessed of a primordial freshness, which idea can never claim. An idea is derivative and tamed. The image is in the natural or wild state, and it has to be discovered there, not put there, obeying its own law and none of ours. We think we can lay hold of image and take it captive, but the docile captive is not the real image but only the idea, which is the image with its character beaten out of it.”
—John Crowe Ransom (1888–1974)