Asger Dag Törnquist

Search results

• 2023

  Set theory and a model of the mind in psychology

  Tornquist, A. & Mammen, J., 2023, In: Review of Symbolic Logic. 16, 4, p. 1233-1259

  Research output: Contribution to journal › Journal article › Research › peer-review

  File
  24 Downloads (Pure)
• 2022

  Maximal almost disjoint families, determinacy, and forcing

  Bakke Haga, K., Schrittesser, D. & Törnquist, A., 2022, In: Journal of Mathematical Logic. 22, 1, p. 1-42 2150026.

  Research output: Contribution to journal › Journal article › Research › peer-review

  File
  3 Citations (Scopus)

  28 Downloads (Pure)
• 2021

  The Borel complexity of von Neumann equivalence

  Moroz, I. & Törnquist, A., 2021, In: Annals of Pure and Applied Logic. 172, 5, 28 p., 102913.

  Research output: Contribution to journal › Journal article › Research › peer-review

  File
  20 Downloads (Pure)
• 2020

  Unitarizability, Maurey-Nikishin factorization, and Polish groups of finite type

  Ando, H., Matsuzawa, Y., Thom, A. & Törnquist, A. D., 2020, In: Journal fuer die Reine und Angewandte Mathematik. 758, p. 223-251 29 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  Open Access

  File
  2 Citations (Scopus)

  74 Downloads (Pure)
• 2019

  Non-classification of free Araki-Woods factors and τ-invariants

  Sasyk, R., Törnquist, A. & Vaes, S., 2019, In: Groups, Geometry, and Dynamics. 13, 4, p. 1219-1234

  Research output: Contribution to journal › Journal article › Research › peer-review

  Open Access

  File
  74 Downloads (Pure)

• The Ramsey property implies no mad families

  Schrittesser, D. & Törnquist, A., 2019, In: Proceedings of the National Academy of Sciences of the United States of America. 116, 38, p. 18883-18887 5 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  Open Access

  File
  8 Citations (Scopus)

  166 Downloads (Pure)
• 2018

  Definability and almost disjoint families

  Törnquist, A. D., 2018, In: Advances in Mathematics. 330, p. 61-73

  Research output: Contribution to journal › Journal article › Research › peer-review
  11 Citations (Scopus)

• Definable maximal discrete sets in forcing extensions

  Schrittesser, D. & Törnquist, A. D., 2018, In: Mathematical Research Letters. 25, 5, p. 1591-1612

  Research output: Contribution to journal › Journal article › Research › peer-review
  1 Citation (Scopus)
• 2017

  A co-analytic Cohen indestructible maximal cofinitary group

  Fischer, V., Schrittesser, D. & Tornquist, A., Jun 2017, In: Journal of Symbolic Logic. 82, 2, p. 629-647

  Research output: Contribution to journal › Journal article › Research › peer-review
  8 Citations (Scopus)
• 2015

  Template iterations and maximal cofinitary groups

  Fischer, V. & Törnquist, A. D., 2015, In: Fundamenta Mathematicae. 230, 3, p. 205-236

  Research output: Contribution to journal › Journal article › Research › peer-review
  11 Citations (Scopus)

• The Σ₁₂ counterparts to statements that are equivalent to the continuum hypothesis

  Törnquist, A. D. & Weiss, W., Dec 2015, In: Journal of Symbolic Logic. 80, 4, p. 1075-1090

  Research output: Contribution to journal › Journal article › Research › peer-review
  1 Citation (Scopus)
• 2014

  Turbulence, orbit equivalence, and the classification of nuclear C^∗-algebras

  Farah, I., Toms, A. & Törnquist, A. D., 2014, In: Journal fuer die Reine und Angewandte Mathematik. 688, p. 101-146

  Research output: Contribution to journal › Journal article › Research › peer-review
  21 Citations (Scopus)
• 2013

  The descriptive set theory of C∗-algebra invariants

  Farah, I., Toms, A. & Törnquist, A. D., 2013, In: International Mathematics Research Notices. 2013, 22, p. 5196–5226

  Research output: Contribution to journal › Journal article › Research › peer-review
  17 Citations (Scopus)

• The isomorphism relation for separable C*-algebras

  Elliott, G., Farah, I., Paulsen, V., Rosendal, C., Toms, A. & Törnquist, A. D., 2013, In: Mathematical Research Letters. 20, 6, p. 1071–1080

  Research output: Contribution to journal › Journal article › Research › peer-review
  13 Citations (Scopus)

• Σ12 and Π11 mad families

  Törnquist, A. D., 2013, In: Journal of Symbolic Logic. 78, 4, p. 1181-1182

  Research output: Contribution to journal › Journal article › Research › peer-review
  9 Citations (Scopus)
• 2012

  Projective maximal families of orthogonal measures with large continuum

  Fischer, V., Friedman, S. D. & Törnquist, A. D., 2012, In: Journal of Logic and Analysis. 4, p. Paper 9 15 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

• The conjugacy relations on unitary representations

  Hjorth, G. & Törnquist, A. D., 2012, In: Mathematical Research Letters. 19, 3, p. 525-535

  Research output: Contribution to journal › Journal article › Research › peer-review

  3 Citations (Scopus)
• 2011

  Localized cohomology and some applications of Popa's cocycle superrigidity theorem

  Törnquist, A. D., 2011, In: Israel Journal of Mathematics. 181, 1, p. 327-346 20 p.

  Research output: Contribution to journal › Journal article › Research › peer-review
  2 Citations (Scopus)

• On the pointwise implementation of near-actions

  Törnquist, A. D., 1 Sep 2011, In: Transactions of the American Mathematical Society. 363, 9, p. 4929-4944 16 p.

  Research output: Contribution to journal › Journal article › Research › peer-review
• 2010

  A co-analytic maximal set of orthogonal measures

  Fischer, V. & Törnquist, A. D., 2010, In: Journal of Symbolic Logic. 75, 4, p. 1403-1414 12 p.

  Research output: Contribution to journal › Journal article › Research › peer-review
  7 Citations (Scopus)

• The effective theory of Borel equivalence relations

  Fokina, E. B., Friedman, S-D. & Törnquist, A. D., 1 Apr 2010, In: Annals of Pure and Applied Logic. 161, 7, p. 837-850 14 p.

  Research output: Contribution to journal › Journal article › Research › peer-review
  20 Citations (Scopus)

• Turbulence and Araki-Woods factors

  Sasyk, R., Törnquist, A. & Törnquist, A. D., 1 Nov 2010, In: Journal of Functional Analysis. 259, 9, p. 2238-2252 15 p.

  Research output: Contribution to journal › Journal article › Research › peer-review
  8 Citations (Scopus)
• 2009

  Borel reductibility and classification of von neumann algebras

  Sasyk, R. & Törnquist, A. D., 1 Jun 2009, In: Bulletin of Symbolic Logic. 15, 2, p. 169-183 15 p.

  Research output: Contribution to journal › Journal article › Research › peer-review
  7 Citations (Scopus)

• Conjugacy, orbit equivalence and classification of measure-preserving group actions

  Törnquist, A. D., 1 Jun 2009, In: Ergodic Theory and Dynamical Systems. 29, 3, p. 1033-1049 17 p.

  Research output: Contribution to journal › Journal article › Research › peer-review
  4 Citations (Scopus)

• Definable davies' theorem

  Törnquist, A. D. & Weiss, W., 1 Jan 2009, In: Fundamenta Mathematicae. 205, 1, p. 77-89 13 p.

  Research output: Contribution to journal › Journal article › Research › peer-review
  3 Citations (Scopus)

• The classification problem for von Neumann factors

  Sasyk, R. & Törnquist, A. D., 15 Apr 2009, In: Journal of Functional Analysis. 256, 8, p. 2710-2724 15 p.

  Research output: Contribution to journal › Journal article › Research › peer-review
  14 Citations (Scopus)
• 2006

  Orbit equivalence and actions of F

  Törnquist, A. D., 1 Mar 2006, In: Journal of Symbolic Logic. 71, 1, p. 265-282 18 p.

  Research output: Contribution to journal › Journal article › Research › peer-review
  18 Citations (Scopus)