David Schrittesser

I am currently a postdoc associated to the DNRF Niels Bohr Professorship of Lars Hesselholt, and part of the non-commutative geometry group at the Department of Mathematical Sciences, University of Copenhagen, where I work with Asger Törnquist.

My Erdös number is 11 (using binary notation).

Research Profile

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


  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. (2016) Submitted.
  8. Definable discrete sets with large continuum. 26 pages. (2016)

In Preparation

Recent and upcoming talks

Young Set Theory 2016

This year, the famous Young Set Theory Workshop put up its tent in Copenhagen, organized by Karen Bakke Haga, Vibeke Quorning, me, and Asger Törnquist. We acknowledge generous support from the DNRF Niels Bohr Professorship of Lars Hesselholt and from the University of Copenhagen.



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

Department of Mathematical Sciences
Universitetsparken 5
Copenhagen, Denmark