Asger Dag Törnquist

Asger Dag Törnquist is an Associate Professor at the Department of Mathematical Sciences, University of Copenhagen. His research focuses on Descriptive Set Theory, Infinite Combinatorics, and Forcing, with applications to Operator Algebra and Ergodic Theory. He received his Ph.D. in Mathematics from the University of California at Los Angeles in 2005.

Research Highlights: His work explores the Borel complexity of orbit equivalence and von Neumann equivalence, with recent contributions to the interplay between set theory and cognitive psychology models. Key topics include projective witnesses, maximal almost disjoint families, and unitarizability in Polish groups.

Publications: Törnquist has published extensively in top-tier journals such as the Annals of Pure and Applied Logic, Journal of Mathematical Logic, and Proceedings of the National Academy of Sciences, often addressing foundational questions in set theory and its applications.