Jeffrey Bregfalk is a Research Fellow at the University of Barcelona. He is research is on the interactions between set theory and algebraic topology, broadly understood.
In particular, he has worked on how the vanishing of the derived functors of the limit functor (cf. lim^1) depends on the underlying set theory. This interacts with the behaviour of strong homology and with results on condensed sets.
For the time being see:
Last revised on August 6, 2026 at 12:48:32. See the history of this page for a list of all contributions to it.