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Dragoslav D. Siljak, the Benjamin and Mae Swig University Professor in the School of Engineering at Santa Clara University, has won the prestigious Richard E. Bellman Control Heritage Award for his fundamental contributions to the theory of largescale systems, decentralized control, and parametric approach to robust stability. The award is the highest recognition of professional achievement for U.S. control systems engineers and scientists, given for distinguished career contributions to the theory or application of automatic control. Bestowed by the American Automatic Control Council (AACC), an association of the control systems divisions of eight member societies, the award is named after the mathematician Richard Bellman, who pioneered the field of dynamic programming, which is essential to control system theory. Siljak joined the SCU faculty in 1964. A prolific scholar, he has published an array of books and papers, including four monographs (Decentralized Control of Complex Systems, LargeScale Dynamic Systems, Nonlinear Systems, and Control of Complex Systems: Structural Constraints and Uncertainty) and more than 200 papers in scholarly and scientific journals. In 1999, the Institute of Electrical and Electronics Engineers honored him with the prestigious title of Life Fellow. His analysis of intricate mathematical models provides a glimpse into how the interdependent parts of complex systems interact in complicated and uncertain ways in order to determine optimal strategies for localized, stabilizing control. "Interest in complex systems has grown in both the living and manmade systems. Everything is becoming more complexthe electric power systems, transportation and communication networks. Everywhere you turn, you see these complex systems," Siljak explains. He has analyzed models in areas as diverse as population biology, the arms race, large space structures, competitive equilibrium in mathematical economics, robotics, electric power systems, and gene regulation. "When we study these models, we don't want to know just what the world is, we want to find what the world can become," he says. Engineering Dean Godfrey Mungal, the Sobrato Professor of Engineering, lauded his colleague's contributions and achievements. "Drago Siljak is an icon in the field of stability and control. Past winners of the award have come mostly from research 1 universities, so it is even more impressive that he has been recognized from an institution which carries a high teaching load," Mungal notes. "In 2007, his book LargeScale Dynamic Systems, Stability and Structure was reprinted after 30 years as a Dover Classic, again attesting to his impact in the field." That impact was reiterated earlier this year when Siljak's 1991 book, Decentralized Control of Complex Systems, topped the list of sales in Amazon's Systems and Control Systems categoryeven though it has been out of print for more than 10 years. A used copy fetched more than $800 in auction. Siljak will formally accept the award on July 1 in Baltimore, MD, at a plenary session during the American Control Conference, the annual conference of the AACC, which is composed of the control systems divisions of the following eight societies: the American Institute of Aeronautics and Astronautics; the American Institute of Chemical Engineers; the Association of Iron and Steel Engineers; the American Society of Civil Engineers; the American Society of Mechanical Engineers; the Institute of Electrical and Electronics Engineers; the Instrumentation, Systems, and Automation Society; and the Society for Computer Simulation. The Autobiographical Sketches New 2010 Book Control of Complex Systems: Structural Constraints and Uncertainty Back Cover "Control of Complex Systems: Structural Constraints and Uncertainty" focuses on control design under information structure constraints and uncertainty, with a particular emphasis on largescale systems. The complexity of such systems poses serious computational challenges and severely restricts the types of feedback laws that can be used in practice. This book systematically addresses the main issues, and provides a number of applications that illustrate potential design methods. Most of these methods utilize Linear Matrix Inequalities, which have become a popular design tool over the past two decades. Authors use their years of experience in the control field to also:
"Control of Complex Systems: Structural Constraints and Uncertainty" will appeal to practicing engineers, researchers and students working in control theory, feedback design, and other related areas. Contents: Dover Publications paperback reprint of the book
LARGE SCALE DYNAMIC SYSTEMS: International Journal of Robust and Nonlinear Control Academician Vladimir A. Yakubovich: A Tribute Ever since A. I. Lur'e introduced the absolute stability problem of nonlinear automatic control systems in his book in 1951, numerous researchers have proposed solutions and extensions of the problem, thus making it one of the most  researched problems in control theory. In my opinion, there are three crucial contributions that stand above all others. The frequency method introduced by V. M. Popov in 1960, the method of linear matrix inequalities proposed by V. A. Yakubovich in 1962, and Kalman's version of the positive real lemma formulated in 1963 via the concepts of controlability and observability. It has been the concept of matrix inequalities, however, that achieved special significance in a large number of areas in control theory and beyond. Supported by the recent advances in convex optimization, the matrix inequalities methods of Yakubovich have dramatically changed the way we approach problems in control theory and applications. It is with great respect and pleasure that I offer to professor Yakubovich my best wishes for his health and happiness on the occasion of his 80th birthday. Dragoslav D. Siljak Dynamic Graphs in Modeling of Complex SystemsDrago SiljakSanta Clara UniversityFriday, June 1st, 2007 3:00pm4:00pm ESB 2001
Abstract:
The 1991 book Decentralized Control of Complex Systems, which was published by Academic Press (Mathematics in Science and Engineering), was ranked #1 on Amazon Books in the two categories, Systems and Control Systems, and #23 in the Information Theory category. The book has been out of print for more than ten years, and the price of a used copy of the book reached $800.
