David Schrittesser

I am currently a postdoc in the non-commutative geometry group at the Department of Mathematical Sciences, University of Copenhagen, where I work with Asger Törnquist.

Research Profile

My research is in set theory; my primary interests are forcing and descriptive set theory.

My Erdös number is 11 (using binary notation).


  1. Sigma^1_3-absoluteness in forcing extensions. Master's thesis, University of Vienna, 2004 (adviser: Sy Friedman).
  2. Lightface Sigma^1_2-indescribable cardinals. Proc. Amer. Math. Soc. 135 (2007), pp. 1213–1222.
  3. Projective measure without projective Baire. PhD thesis, University of Vienna, 2010 (adviser: Sy Friedman).
  4. (joint with Sy Friedman and Ralf Schindler) Coding over core models, in: Infinity, Computability, and Metaphysics (Geschke et al., eds.), Festschrift celebrating the 60th birthdays of Peter Koepke and Philip Welch, College Publications, pp. 167--182.
  5. (joint with Sy Friedman) Easton supported Jensen coding and projective measure without projective Baire. (2014) 142 pages. Submitted.
  6. (joint with Asger Törnquist) Definable maximal discrete sets in forcing extensions. (2015) 16 pages. Submitted.
  7. (joint with Asger Törnquist and Vera Fischer) A co-analytic Cohen-indestructible maximal cofinitary group. 20 pages. (2015) Submitted.

In Preparation



email: david.schrittesser "at" univie.ac.at
Office phone: +45 3533 2013