Dold manifold
Encyclopedia
In mathematics, a Dold manifold is one of the manifolds P(m,n) = (Sm×CPn)/τ (where τ acts as −1 on the sphere Sm and a complex conjugation on complex projective space
CPn) constructed by that he used to give explicit generators for Thom's unoriented cobordism ring.
Complex projective space
In mathematics, complex projective space is the projective space with respect to the field of complex numbers. By analogy, whereas the points of a real projective space label the lines through the origin of a real Euclidean space, the points of a complex projective space label the complex lines...
CPn) constructed by that he used to give explicit generators for Thom's unoriented cobordism ring.