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Rigorous convex underestimators for a broad class of variational and optimal control problems are developed. These rely only on the functional form of a nonconvex variational or optimal control problem, and therefore are quite general. The notion of convex underestimators is used extensively in modern algorithms for the global optimization of nonconvex algebraic problems (NLP, INLP and MINLP). However, the application of variational convex underestimators to global optimization algorithms for variational problems does not proceed directly by analogy. Progress towards this goal will be reported.
Type of Seminar:
Public Seminar
Prof. Paul I. Barton
Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02138, U.S.A.
Jan 31, 2001   17:15

Contact Person:

Prof. M. Morari
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Biographical Sketch:
Education: 1988-92: Ph.D. entitled "The Modelling and Simulation of Combined Discrete/Continuous Processes" at the Imperial College Centre for Process Systems Engineering, London. 1984-88: First class honours degree in Chemical Engineering (MEng) Associate of City and Guilds Institute at the Imperial College, London. Professional Experience: 1999-present Associate Professor of Chemical Engineering at MIT. 1997-99 Assistant Professor of Chemical Engineering at MIT. 1992-97: Hoyt C. Hottel Assistant Professor of Chemical Engineering at MIT and Leaders for Manufacturing Professor. 1989-92: Research Assistant at Centre for Process Systems Engineering of Imperial College. 1985-87: Summer assignments with Air Products PLC, Walton-upon-Thames, UK. 1983-84: Research Technician, BP Research Centre, Sunbury-on-Thames, UK. Consulting Aspen Technology Inc. (1993-98), Dow Chemical Company (1997), Modell Environmental (1997-98). Teaching: Process Flowsheeting Project (introduction to ASPENPLUS (seniors)) / Systems Engineering (graduate)/ Modelling, Simulation and Optimization of Chemical Processes(summer professional program) /Batch Process Design Module (seniors) Awards and Honours: 2000: Listed in Who's Who in Science and Engineering. 1997-98: Dupont Educational Aid Grant. 1996: Listed in Who's Who of Information Technology. 1995-98: Exxon Education Foundation Award. 1988-91: Bursary awarded by Air Products and Chemicals Inc. 1988-89: SERC Postgraduate Studentship. 1988: John and Francis Jones Prize (-- 1 student in School of Engineering). 1988: IChemE's Hinchley Medal and Governor's Prize (--1 student in Chemical Engineering). 1987: BOC/Dr M.P. Schuftan Memorial Prize for Process Design. 1984-88: Industrial sponsorship from Air Products PLC. Professional Affiliations: American Institute of Chemical Engineers (AIChE), Institute of Chemical Engineers (IChemE) (Associate Member), Society for Computer Simulation (SCS), Society for Industrial and Applied Mathematics (SIAM), Association for Computing Machinery (ACM), Old Centralians (UK).