Example image of eyePlorer eyePlorer map for '4-manifold': Mathematics Topological manifold Differential structure Diffeomorphism Homeomorphism Homotopy Intersection form (4-manifold) Simply connected space Kirby–Siebenmann class Unimodular lattice Poincaré conjecture E8 manifold Presentation of a group Piecewise linear manifold Donaldson's theorem Exotic R4 Seiberg–Witten invariant Exotic sphere H-cobordism Enriques–Kodaira classification Donaldson theory Fake 4-ball Frank Quinn Hitchin–Thorpe inequality Noether inequality Peter B. Kronheimer Taubes's Gromov invariant Robion Kirby Topological quantum field theory Whitney disk Elliptic surface 5-manifold Casson handle Vladimir Abramovich Rokhlin List of manifolds Intersection theory (mathematics) Tomasz Mrowka Kirby calculus Einstein manifold Symplectomorphism Simon Donaldson Alexander polynomial Floer homology E8 (mathematics) E8 lattice Michael Atiyah Homotopy groups of spheres Differentiable manifold Manifold