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)
“An actor rides in a bus or railroad train; he sees a movement and applies it to a new role. A woman in agony of spirit might turn her head just so; a man in deep humiliation probably would wring his hands in such a way. From straws like these, drawn from completely different sources, the fabric of a character may be built. The whole garment in which the actor hides himself is made of small externals of observation fitted to his conception of a role.”
—Eleanor Robson Belmont (1878–1979)