Home › Scientific activity

Scientific activity

Success consists of going from failure to failure without
loss of enthusiasm. (Winston Churchill)

The area of the scientific interest

  • Operator Theory (positive operators, semigroups of operators);
  • Approximation Theory (Korovkin-type approximation theory, positive approximation processes).

Participations conferences abroad

  • International Conference on Functional Analysis, Approximation Theory and Numerical Analysis, Matera, Italy, July 5-8, 2022.
  • The 9th International Congress on Fundamental and Applied Sciences, ICFAS 2022, Istanbul, Turkey, June 27-30, 2022.
  • International Conference Recent Developments in Mathematical Analysis on the occasion of Francesco Altomare 70th ‘s birthday, Bari, Italy, September 22 – 23, 2021.
  • The 6th International Congress on Fundamental and Applied Sciences, ICFAS 2019, Tirana, Albania, June 18-20, 2019.
  • The 5th International Congress on Fundamental and Applied Sciences, ICFAS 2018, Skopje, Macedonia, June 18-22, 2018.
  • 21st International Conference on Applied Mathematics, AMATH’16, Bern, Switzerland, 17 – 19 December, 2016.
  • International Symposium The Real World is Complex, Copenhagen, Denmark, August 26 – 28, 2015.
  • The 6th International Conference on Functional Analysis and Approximation Theory, Acquafredda di Maratea (PZ), Italy,  September 24-30, 2009.
  • MASSEE International Congress on Mathematics, MICOM 2006, Paphos, Cyprus, May 31-June 4, 2006.
  • International Conference on Functional Analysis, Operator Theory and Applications,   Mondello (Palermo), Italy, September 19 – 25, 2005.
  • The 5th International Conference on Functional Analysis and Approximation Theory, Acquafredda di Maratea (PZ), Italy, June 16-23, 2004.
  • The 5th Joint Conference on Mathematics and Computer Science, Debrecen, Hungary, June 9-12, 2004.
  • International Conference: Advances in Constructive Approximation, Vanderbilt University, Nashville, Tennessee, USA, May 14-17, 2003.
  • The Tenth International Conference on Fibonacci Numbers and Their Applications, Northen Arizona University, Flagstaff, Arizona,  USA, June 24-28, 2002.
  • The 4th International Conference on Functional Analysis and Approximation Theory, Acquafredda di Maratea (PZ), Italy, September 22-28, 2000.
  • Third Joint Conference on Mathematics and Computer Science, Visegrad, Hungary, June 9-12, 1999.
  • The Eighth International Research Conference on Fibonacci Numbers and Their Applications, Rochester Institute of Technology, Rochester, New York, USA, June 22-26, 1998.

 Invited speaker/ Visiting Professor

  • The 2nd  International Conference on Mathematics and Computers in Science and Engineering, MACISE 2020, Madrid, Spain, January 18-20, 2020.
  • The 12th International Conference on Approximation Theory and its Applications, 26 May – 29 May, 2016, Sibiu.
  • The 11th Joint Conference on Mathematics and Computer Science, 20 – 22 May, 2016, Eger, Hungary.
  • The 11th Romanian – German Seminar on Approximation Theory and its Applications, 29 May – 1 June, 2014, Sibiu.
  • Seminar of Estonian Doctoral School in Mathematics and Statistics, June 6, 2012, University of Tartu, Estonia.
  • International Conference: Recent Developments in Functional Analysis and Approxima- Theory, September 22-24, 2011, Lecce, Italy.
  • International Conference on Mathematical Sciences (ICMS), Nov. 23-27, 2010, Abant Izzet Baysal University of Bolu, Turkey.
  • April 18 – May 8, 2009 and April 19 – May 8, 2010, visiting professor  The African University of Science and Technology (AUST), Abuja, Nigeria.  Lectures: Mathematical  Statistics
  • September 26 – October 2, 2008, visiting professor Tishreen University, Latakia, Syria.
  • The 6th International Conference on Applied Mathematics, ICAM6, Sept. 18-21, 2008, Baia – Mare.
  • The 12th International Conference on Applied Mathematics, Computer Science and Mechanics,  September 10 – 13, 2008, Băişoara.
  • June 28 – July 5, 2007, visiting professor  Ankara University, Turkey.
  • International Conference of Mathematics and Informatics, ICMI45, Sept. 18 – 20, 2006, Bacău.
  • June 1 – June 16, 2006, visiting professor
    Vienna University of Technology (VUT), in the frame CEI – Central European Initiative
    University Network Project. Lectures: Numerical Mathematics.

 Coordinating international meetings

  • International Conference on Numerical Analysis and Approximation TheoryOrganized by the team of Numerical Calculus and Statistics, Department of Mathematics, Faculty of Mathematics and Computer Science, Babeş-Bolyai University of Cluj-Napoca.
    First Edition: July 5 – 8, 2006 (NAAT2006)
    Second Edition: September 23 – 26, 2010 (NAAT2010)
    Third Edition: September 17 – 20, 2014 (NAAT2014)
    Fourth Edition: September 6 – 9, 2018 (NAAT2018)
  • Third Summer School on Data Assimilation and its Applications (SSDA2013)
    22th July – 2nd August, 2013 Organized by Delft University of Technology (TU), Netherlands; Dutch Organization for Applied Scientific Research (TNO), Netherlands; Department of Mathematics, Faculty of Mathematics and Computer Science, Babeş-Bolyai University of Cluj-Napoca, Romania.

 Member of the Editorial Board

Others   

  • Member of the American Mathematical Society;
  • Reviewer at Mathematical Reviews.