Otmar Spinas

Prof. Dr. Otmar Spinas is affiliated with the Christian-Albrechts-University of Kiel, where he works in the Department of Mathematics. His research focuses on set theory, forcing, cardinal invariants, descriptive set theory, and infinite combinatorics, particularly in the context of Polish spaces and tree ideals.

• Research Interests: Spinas investigates the interplay between tree ideals, Ramsey theory, and regularity properties, with a focus on cardinal invariants, Tukey reductions, and the structure of Borel functions. His work often bridges mathematical logic, topology, and combinatorial set theory.
• Publications: His recent papers explore topics such as Mycielski ideals, compact tree ideals, and their covering numbers, alongside foundational contributions to Silver forcing and Sacks amoeba forcing.
• Projects: He is involved in DFG-funded research on cardinal invariants of tree ideals, antichain numbers, and continuous Ramsey theory.