This formulation of Poincaré Duality has become quite popular as it provides a means to define Poincaré Duality for any generalized homology theories provided one has a Thom Isomorphism for that homology theory.
This formulation of Poincaré Duality has become quite popular. It provides a means to define Poincaré Duality for any generalized homology theories provided one has a Thom Isomorphism for that homology theory.