Issa Tall SIUC, Mathematics Assistant Professor   Ph.D., INSA de Rouen at France, 2000.   Control Theory, Theory of Dynamical Systems, Differential Geometry   Office: Neckers A 373 Office Phone: 618-453-6501 Email: itall at math.siu.edu Web Page: www.math.siu.edu/tall

Research Interests

Analysis of control systems: feedback classification of control systems, normal forms, canonical forms, and their symmetries.

Selected Publications

1. Feedback Classification of Multi-Input Nonlinear Control Systems, SIAM Journal on Control and Optimization, 43 (6) (2003), pp. 2049-2070.
2. Nonlinearizable Analytic Single-Input Control Systems with Controllable Linearization Do Not Admit Stationary Symmetries, with W. Respondek, Systems and Control Letters 46 (1) (2002), pp. 1-16 .
3. Smooth and Analytic Normal and Canonical Forms: A Special Class of Strict Feedforward Systems, with W. Respondek, in 44th IEEE Conference on Decision and Control, Seville, Spain, 2005, pp. 4213-4218.
4. Strict Feedforward Form and Symmetries of Nonlinear Control Systems, with W. Respondek, in 43rd IEEE Conference on Decision and Control, Atlantis, Bahamas, 2004, pp. 1611-1616.
5. Feedback Equivalence of Nonlinear Control Systems: A Survey on Formal Approach, with W. Respondek, in Chaos in Automatic Control, W. Perruquetti and J-P. Barbot (Eds.), pp. 137-262.