Mathematicians’ Favorite Shapes Hold the Key to Big Mathematical Mysteries ...

The problem Heikkilä solved concerns the classification of quasiregularly elliptic 4-manifolds, which involves understanding which four-dimensional spaces can be formed by deforming standard ...

asking what four-dimensional shapes can be obtained by deforming four-dimensional Euclidean geometry. The article by Heikkilä and Pekka Pankka has been published in the Annals of Mathematics journal.