Workshop on Open Problems in Systems and Control

University of Liège, 30 June 1997

International Scientific Committee:

V. Blondel, University of Liège, Belgium
S. Boyd, Stanford University, USA
M. Fliess, CNRS-Supelec, France
M. Gevers, University of Louvain, Belgium
P. Kokotovic, University of California at Santa-Barbara, USA
H. Kwakernaak, University of Twente, The Netherlands
A. Lindquist, Royal Institute of Technology, Sweden
I. Mareels, University of Melbourne, Australia
E. Sontag, Rutgers University, USA
J. Tsitsiklis, Massachusetts Institute of Technology, USA
M. Vidyasagar, Centre for Artificial Intelligence, Bangalore, India
J. Willems, University of Groningen, The Netherlands
 

Contributions presented:

Phase-sensitive structured singular value
André L. Tits (University of Maryland, USA)
V. Balakrishnan (Purdue University, USA)

Matrix inequality conditions for canonical factorization of rational transfer function matrices
Conditions for the existence and uniqueness of optimal matrix scalings
V. Balakrishnan (Purdue University, USA)

Approximation of complex $\mu$
Minyue Fu (University of Newcastle, Australia)

Conservatism of the standard upper bound test: Is $\sup(\overline {\mu }/\mu )$ finite? Is it bounded by 2?
Onur Toker (University of California at Riverside, USA)
Bram De Jager (Delft University of Technology, The Netherlands)

To estimate the $L_2$-gain of two dynamic systems
Anders Rantzer (University of Lund, Sweden)

System approximation in the 2-norm
A.C. Antoulas (Rice University, USA)

Open problems in $l_1$ optimal control
Bassam Bamieh (Massachusetts Institute of Technology, USA)
Munther A. Dahleh (Massachusetts Institute of Technology, USA)

Convergence of an algorithm for the Riemannian SVD
Bart De Moor (Katholieke Universiteit Leuven, Belgium)

Isospectral flows and the shifted QR algorithm
Paul Van Dooren (Université Catholique de Louvain, Belgium)

Max-plus-times linear systems
Max-Plus Working Group (INRIA-Rocquencourt and Ecole des Mines, France)

Covering numbers for input-output maps realizable by neural networks
M. Vidyasagar (Centre for Artificial Intelligence, India)

Convergence of iterative learning control algorithms for relative degree two systems
David H.Owens (University of Exeter, UK)

Open Problems in sequential parametric estimation
Er-Wei Bai (University of Iowa, USA)
Roberto Tempo (Politecnico di Torino, Italy)
Yinyu Ye (University of Iowa, USA)

On chaotic observer design
Henk Nijmeijer (University of Twente, The Netherlands)

Motion planning for some parameter distributed systems
Michel Fliess (CNRS-Supelec, France)

Uniform asymptotic stability of linear time-varying systems
Dirk Aeyels (Universiteit Gent, Belgium)
Joan Peuteman (Universiteit Gent, Belgium)

Robust stability of linear stochastic systems
D. Hinrichsen (University of Bremen, Germany)
A. J. Pritchard (University of Warwick, UK)

Spectral value sets of infinite-dimensional systems
E. Gallestey (University of Bremen, Germany)
D. Hinrichsen (University of Bremen, Germany)
A. J. Pritchard (University of Warwick, UK)

Lyapunov exponents of bilinear systems
D. Hinrichsen (University of Bremen, Germany)
F. Wirth (University of Bremen, Germany)

Elimination of latent variables in real differential algebraic systems
Iven Mareels (University of Melbourne, Australia)
Jan C. Willems (University of Groningen, The Netherlands)

Complexity, misfit, and latency
Jan C. Willems (University of Groningen, The Netherlands)

Lyapunov theory for high order differential systems
Jan C. Willems (University of Groningen, The Netherlands)

Open problems in the area of pole placement
Joachim Rosenthal (University of Notre-Dame, USA)
Jan C. Willems (University of Groningen, The Netherlands)