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

Banach-Lie group valued cocycles and discrete cohomology Wang, Daxun Spring 2024 Dr. Johanna Mangahas On the Problems of Isomorphism and Profinite Rigidity of Generalized Baumslag-Solitar Groups Zhao, ...

I had discussed local versions some years ago, and recently returned to this topic. Other recent themes are on problems arising from cohomology and Hodge theory on singular varieties, where I have ...