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.
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. (en)
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. (en)