Seiberg-Witten 1994: simpler 4-manifold invariants than Donaldson; D_A psi = 0 + F_A^+ = sigma(psi); SW-basic-classes recover + improve Donaldson invariants.
Seiberg-Witten 1994: simpler 4-manifold invariants than Donaldson; D_A psi = 0 + F_A^+ = sigma(psi); SW-basic-classes recover + improve Donaldson invariants.