Name: Liviu Pãunescu
Place of birth: Constanţa, Romania

Email: first_name dot last_name at imar dot ro


Date and title of PhD thesis

Title: Sofic actions and equivalence relations
Date: 4 February 2011

Work experience

Awards received

Highscool Research

Fundings as a Principal Investigator (PI)

  • Project director of a bilateral cooperation Romania-Austria grant of the Romanian National Authority for Scientific Research, CNCS - UEFISCDI, 2014-2015.
  • Project director of Grant no. PN-II-RU-TE-2014-4-0669 of the Romanian National Authority for Scientific Research, CNCS - UEFISCDI, 2015-2017.

    Publication list

    1. M. Cavaleri, R.B. Munteanu, L. Pãunescu; Two special subgroups of the universal sofic group,

    2. Paunescu, L; Unitaries in Ultraproduct of Matrices,
      Accepted to Journal of Operator Theory, arXiv:1605.07101.

    3. Paunescu L; Radulescu F; A generalisation to Birkhoff - von Neumann theorem,
      Advances in Mathematics, Volume 308, 2017, Pages 836-858.

    4. Arzhantseva, G; Paunescu L; Almost commuting permutations are near commuting permutations,
      Journal of Functional Analysis, Volume 269, Issue 3, 1 August 2015, Pages 745-757.

    5. Paunescu L; Convex structures revisited,
      Ergodic Theory and Dynamical Systems, Volume 36, Issue 5, August 2016, Pages 1596-1615.

    6. Arzhantseva, G; Paunescu L; Linear sofic groups and algebras,
      Transactions of the American Mathematical Society, Volume 369, Number 4, April 2017, Pages 2285-2310.

    7. Paunescu, L; A Convex Structure on Sofic Embeddings,
      Ergodic Theory and Dynamical Systems, Volume 34, Issue 4, August 2014, Pages 1343-1352.

    8. Paunescu L; All automorphisms of the universal sofic group are class-preserving,
      Revue Roumaine de Mathematiques Pures et Appliquees, Special Issue Dedicated to Professor Serban Stratila, Volume 59, Issue 2, 2014, Pages 255-263.

    9. Capraro, V; Paunescu, L; Product between ultralters and applications to the Connes' Embedding Problem,
      Journal of Operator Theory, Volume 68, Issue 1, Summer 2012 pages 165-172.

    10. Paunescu, L; On Sofic Actions and Equivalence Relations,
      Journal of Functional Analysis, Volume 261, Issue 9, 1 November 2011, Pages 2461-2485.


    Lista de citari

    Conferences organised

  • 2016: Co-organiser of "Sofic Groups and Operator Algebra", Bucharest, IMAR
  • 2015: Co-organiser of "Group Theory and Operator Algebra", Bucharest, IMAR
  • 2014: Co-organiser of "Topics in Geometric Group Theory", Bucharest, IMAR
  • 2011: Co-organiser of "EU-NCG 4th annual meeting", Bucharest, IMAR
  • 2007: Co-organiser of "Free Probabilities, Operator Spaces and von Neumann Algebras", Sibiu, University "Lucian Blaga"


    Conference Talks

    1. Sofic equivalence relations and Connes' Embedding Problem; 30 min talk; Annual meeting in Cardif 21 June- 4 July 2010.
      http://www.cardiff.ac.uk/maths/subsites/opalg/eu-ncg/meeting 2010.html
    2. Sofic actions; 30 min talk; Annual meeting in Bucharest April 25-30 2011.
    3. Sofic actions; 40 min talk; Meeting of GDRE GREFI-GENCO in Paris 30 May - 1 June 2011.
    4. A convex structure on the set of sofic embeddings 50 min talk; Workshop on Connes' Embedding Conjecture, Neuchatel April 23-27 2012;
    5. Linear sofic groups and algebras; 50 min talk; Word maps and stability of representations Erwin Schrödinger International Institute, Vienna, 11-13 April 2013;
    6. A convex structure on sofic embeddings; 50 min talk and Linear sofic groups and algebras; 30 min talk; Joint Meeting of the AMS and the RMS, Alba-Iulia 27-30 June 2013

    Seminar Talks

    1. Linear sofic groups and algebras 30 January 2013, Seminar Geometry and Analysis on Groups, University of Vienna
    2. A convex structure on sofic embeddings 24 January 2013, Colloquium at Mathematical Institute in Goettingen
    3. A convex structure on sofic embeddings 23 January 2013, Seminar Algebra and Geometry in Leipzig
    4. Sofic actions and equivalence relations; 30 March 2011, Sofic Groups seminar Lausanne-Wien-Neuchtel.
    5. Sofic groups, equivalence relations and Connes' embedding problem 23 April 2010, Oparator algebra seminar at KU Leuven