![Me](https://blog.nus.edu.sg/linusrichter/files/2024/06/me_sg_s-300x300.png)
Previously, I completed a PhD in mathematics at Victoria University of Wellington (NZ) advised by Dan Turetsky. Before coming to New Zealand, I received a Master’s degree from the University of Manchester (UK) in 2018. My Master’s thesis was supervised by Gareth Jones.
Contact: richter@nus.edu.sg
Research Papers
Submitted for publication
More on Bases of Uncountable Free Abelian Groups
[ PDF ]
with Noam Greenberg, Saharon Shelah, and Dan TuretskyTo appear
Theses
On the Definability and Complexity of Sets and Structures
[ PDF ]
Topics in Set Theory and Logic
[ PDF ]
Talks
The Borel-Definable Group Cohomology of ℝn Is (Hopefully) Simple
[ PDF ]
On CA-Recursion and Marstrand’s Theorem
Victoria University of Wellington Logic Seminar
Mar 2023
Pt 1: Controlling the Construction of CA-sets
[ PDF ]
Pt 2: CA Counterexamples to Marstrand’s Projection Theorem
[ PDF ]
Co-analytic Counterexamples to Marstrand’s Projection Theorem
Penn State Logic Seminar // online
Sep 2023 [ PDF ]
National University of Singapore Logic Seminar // online
Mar 2023 [ PDF ]
Computability Theory and Applications Seminar // online
Jan 2023 [ PDF ]
On (Borel) Group Extensions
University of Sydney Graduate Talks in Topology and Geometry (GT)2 // online
May 2022 [ PDF Slides / PDF Handwritten ]
University of Sydney Graduate Talks in Topology and Geometry (GT)2 // online
On Homological Algebra, Group Extensions, and Descriptive Set Theory
[ PDF ]
When the Search for Proofs Turns Futile
[ PDF ]
Higher Derived Limits and Cohomology of Ordinals
[ PDF ]
Computability, Complexity, and Some Algebra
[ PDF ]
More on Bases of Uncountable Free Abelian Groups
Miscellaneous
Short Teaching Notes
Doctoral Proposal
[ PDF ]