Heegaard splitting
Decomposition of a compact oriented 3-manifold by dividing it into two handlebodies / From Wikipedia, the free encyclopedia
In the mathematical field of geometric topology, a Heegaard splitting (Danish: [ˈhe̝ˀˌkɒˀ] ⓘ) is a decomposition of a compact oriented 3-manifold that results from dividing it into two handlebodies.