Janos Turi

Professor - Mathematical Sciences
janos.turi@utdallas.edu
972-883-2183
FO2408A
Personal Page
Tags: optimal control theory functional differential equations integral equations approximation theory numerical analysis applied functional analysis

Professional Preparation

Ph.D. - Mathematics
Virginia Polytechnical Institute and State University - 1986
M.S. - Electrical Engineering
Polytechnic University of Budapest - 1977
B.S. - Electrical Engineering
Polytechnic University of Budapest - 1975

Research Areas

Current Fields of Interest
  • Functional differential equations
  • Integral equations
  • Approximation theory
  • Optimal control theory
  • Numerical analysis
  • Applied functional analysis
  • Mathematics of finance

Publications

An Ultra Weak Finite Element Method as an Alternative to a Monte Carlo Method for an Elasto-Plastic Problem with Noise (with A. Bensoussan, L. Mertz, and O. Pironneau), SIAM. J. Numer. Anal., v. 47 (2009), 3374-3396.  2009 - Publication
Degenerate Dirichlet Problems Related to the Invariant Measure of Elasto-Plastic Oscillators (with A. Bensoussan), Applied Math. and Optimization, DOI 10.1007/s00245-007-9027-4, v. 58, (2008), 1-27.  2008 - Publication
On the Higher-Order Semi-Discretizations for Periodic Delayed Systems (with T. Insperger and G. Stepan), Journal of Sound and Vibration, v. 313 (2008), 334-341.  2008 - Publication
State-Dependent Delay in Regenerative Turning Processes (with T. Insperger and G. Stepan), Nonlinear Dynamics, v. 47, 2007, 275-283.  2007 - Publication
Stability Conditions for Differential-Difference Systems of Retarded- and Neutral- Type: The Single Delay Case (with R. H. Fabiano), International Journal on Qualitative Theory for Differential Equations and Applications, v. 1, (2007), 57-75.  2007 - Publication
Singularity Expansion for a Class of Neutral Equations (with Y. Cao, G. Cerezo, and T.L. Herdman), Journal of Integral Equations and Applications, v. 19, 2007, 13-32.  2007 - Publication
Approximate Stability Charts for Milling Processes Using Semi-Discretization (with F. Hartung, T. Insperger and G. Stepan), Applied Mathematics and Computation, v. 174, 2006, 51-73. 2006 - Publication
Self-Regulation in an Ecology Model of Shared Predation (with V. Gafiychuk), International Journal of Ecology & Development (Special Issue on: Modelling of Evolving Systems in Ecology and Economics), v. 5, 2006, 27-35. 2006 - Publication
State-Dependent Delay in Regenerative Turning Processes (with T. Insperger and G. Stepan), Nonlinear Dynamics, v. 47, 2007, 275-283. 2006 - Publication
Stochastic Variational Inequalities for Elasto-Plastic Oscillators (with A. Bensoussan), Comptes Rendus Acad. Sci. Paris, Ser. I, v. 343, 2006, 399-406. 2006 - Publication

Appointments

Visiting Professor
Budapest University of Technology [2003–2004]
Professor
University of Texas at Dallas [1996–Present]
Visiting Professor
Karl Franzens Universitt [1993–1994]
Associate Professor
University of Texas at Dallas [1992–1996]
Assistant Professor
University of Texas at Dallas [1990–1992]
Research Associate
Virginia Tech [1986–1986]
Assistant Professor
Worcester Polytechnic Institute [1986–1990]
Teaching Assistant & Research Assistant
Virginia Tech [1981–1986]
Lecturer
Polytechnic University, Budapest [1976–1980]

Awards

20 Years of Service Award - [2010]

Additional Information

Professional Societies
  • Society for Industrial and Applied Mathematics
  • Institute of Electrical and Electronics Engineers
Awards
  • 1994 Received best paper award (jointly with L. R. Hunt) from IEEE Control Society DFW Chapter.
Other Professional Activities

Refereed articles for

  • SIAM Reviews
  • Quarterly J. of Applied Mathematics
  • International J. for Numerical Methods in Engineering
  • IEEE Transactions on Automatic Control
  • ASCE--Aerospace Division
  • J. of Mathematical Analysis and Applications
  • J. of Mathematical Systems, Estimation, and Control
  • ASME J. of Dynamic Systems, Measurement and Control
  • J. of Differential Equations
  • J. of Nonlinear Dynamics
  • IEEE-CDC
  • Mathematical and Computer Modeling
  • Mathematical Reviews
  • Applied Numerical Mathematics
  • J. of Mathematical Biology
  • Automatica
  • Proceedings of AMS

Organizer of the Period of Concentration , Control and Identification for Distributed Parameter Systems, in the Distinguished Lecture Series of Spring 91 at UTD.
Organized the UTD Center for Engineering Mathematics: Workshop on Mathematical Modeling, April 1992.
Graduate Advisor in Applied Mathematics at UTD, January 1991 -- January1993.
Organizer of the Period of Concentration , Mathematical Modeling, in the Distinguished Lecture Series, Spring 93 at UTD.
Co-organizer of invited section on "Modeling for Identification and Control" for the 34th CDC, New Orleans, 1995.
Graduate Advisor in Applied Mathematics at UTD, September 95 -- May 1998.
Served as a member of the International Organizing Committee for the "International Conference on Nonlinear Problems in Aviation and Aerospace 96" held in Daytona Beach, Florida, May 1996.
Co-organizer od invited section on "Modeling, Control, and Estimation of Dynamical Systems" at the "Second World Congress of Nonlinear Analysts" held in Athens, Greece, July 1996.
Chaired section at the "Fifth Colloquium on the Qualitative Theory of Differential Equations" held in Szeged, Hungary, July-August, 1996.
Chaired section at the "International Conference on Differential Equations and Dynamical Systems" held in Waterloo, Ontario, Canada, August 1997.
UTD AMP Mentor, 1998-1999.
Served as a member of the International Organizing Committee for the "3rd International Conference on Nonlinear Problems in Aviation and Aerospace 2000" held in Daytona Beach, Florida, May 2000.
Co-organizer of invited sections on "Optimal Design and Control" and "Integro-Differential and
Volterra Equations: Numerical Techniques, Simulations and Applications" at the "3rd World Congress of Nonlinear Analysts" held in Catania, Italy, July 2000.
Served as a member of the Global Organizing Committee for the "3rd World Congress of Nonlinear Analysts" held in Catania, Italy, July 2000.
Departmental seminar organizer, 2000 - 2006.
Organized special session on "Ordinary and Functional Differential Equations" at the "International
Conference on Differential and Difference Equations and Applications" held in Melbourne, Florida, August 2005.
Undergraduate Advisor in Applied Mathematics at UTD, September 2005 - present.
Supervised Senior Honor's Thesis for Curtis Klager (Spring 2005) and Nicholas Walker (Fall 2005).
Supervised Senior Honor's Thesis for Michael Seligson (Spring 2006).
Organized special session "B oundary Value Problems in En gineering" at the "6th International Conference on Mathematical Problems in Engineering and Aerospace Seiences", held in Budapest, Hungary, June 2006.