Researchers have solved a long-standing problem in topology by helping classify four-dimensional shapes (4-manifolds) that ...

A mathematical problem solved by Susanna Heikkilä relates to the classification of quasiregularly elliptic 4-manifolds, ...

For over 2,000 years, Pythagoras’ theorem has stood as one of the cornerstones ... Despite thousands of proofs—ranging from Euclid to modern algebraic approaches—it was widely believed ...