Mathematician Per Enflo, who solved a huge chunk of the 'invariant subspaces problem' decades ago, may have just finished his work. When you purchase through links on our site, we may earn an ...

We prove that in many cases the geometric dimension of the p-fold Whitney sum pHk of the Hopf bundle Hk over quaternionic projective space QPk is the smallest n such that for all i ⩽ k the reduction ...

The Monthly publishes articles, as well as notes and other features, about mathematics and the profession. Its readers span a broad spectrum of mathematical interests, and include professional ...