Eduardo D. Sontag
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Eduardo Sontag (b. 1951 in Argentina) is an American mathematician who works in systems biology and control theory and engineering.
He received his Licenciado degree from the Mathematics Department at the University of Buenos Aires in 1972, and his Ph.D. (Mathematics) under Rudolf Kalman at the Center for Mathematical Systems Theory, University of Florida, in 1976.
Since 1977, Sontag has been with the Department of Mathematics at Rutgers University, The State University of New Jersey, where he is currently Professor of Mathematics as well as a Member of the Graduate Faculties of the Department of Computer Science and of the Department of Electrical and Computer Engineering. He is also the director of SYCON, the Rutgers Center for Systems and Control, and is a co-founder and Member of the Steering Committee of the BioMaPS Institute for Quantitative Biology.
He has authored the books Topics in Artificial Intelligence (in Spanish, Buenos Aires: Prolam, 1972), Polynomial Response Maps (Berlin: Springer, 1979), and Mathematical Control Theory: Deterministic Finite Dimensional Systems (Texts in Applied Mathematics, Volume 6, Second Edition, New York: Springer, 1998) and is an ISI Highly Cited researcher. (Link to publication list).
He is in the Editorial Board of IEE Proceedings Systems Biology, SIAM Review, Synthetic and Systems Biology, International Journal of Biological Sciences, Journal of Computer and Systems Sciences, and Neural Computing Surveys (Board of Advisors), and a former Board member of IEEE Transactions in Automatic Control, Systems and Control Letters, Dynamics and Control, Neurocomputing, Neural Networks, Control-Theory and Advanced Technology, and Control, Optimization and the Calculus of Variations. In addition, he is a co-founder and co-Managing Editor of the Springer journal (MCSS (Mathematics of Control, Signals, and Systems).
Sontag is an Institute of Electrical and Electronics Engineers (IEEE) Fellow, and has been Program Director and Vice-Chair of the Activity Group in Control and Systems Theory of Society for Industrial and Applied Mathematics (SIAM). He has been a member of several committees at SIAM and the American Mathematical Society, and is a former Chair of the Committee on Human Rights of Mathematicians of the latter. He was awarded the Reid Prize in Mathematics in 2001, the 2002 Hendrik W. Bode Lecture Prize from the IEEE, the 2002 Board of Trustees Award for Excellence in Research from Rutgers University, and the 2005 Teacher/Scholar Award from Rutgers University.
His work in control theory led to the introduction of the concept of input to state stability (ISS), a stability theory notion for nonlinear systems, and control-Lyapunov functions. In systems biology, Sontag introduced together with David Angeli the concept of input/output monotone system.
