XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX THE INTERNATIONAL SOCIETY OF DYNAMIC GAMES E-LETTER, issue No. 2, 31 May 1991 Edited by Raimo P. Hamalainen and Harri Ehtamo Systems Analysis Laboratory, Helsinki University of Technology ISDG@FINHUT.BITNET or ISDG@FINHUT.HUT.FI XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Dear Dynamic Game Theorist, This is the second issue of the Society’s electronic newsletter. The basic minimum work principle in editing this e-letter is that the READERS send important notes and information about symposia, conferences and workshops of dynamic games, as well as abstracts of Ph.D. theses, papers and books, which they want to be included in the newsletter. The format is described below. We hope that no retyping will be needed so please follow the instructions and sample shown below carefully. The news should be concise to keep the newsletter readable. Requests for more complete information about any news item should be directed to its contributor. We appreciate any comments and suggestions that you may have on this e-letter. Next issue is planned to be sent out in September 1991. Looking forward to receiving your news contributions. Happy Summer Time Raimo P. Hamalainen and Harri Ehtamo P.S. The two e-mail addresses given above are in principle identical. Depending on your network one or both of them should work. If you are in a BITNET node you only need ISDG at FINHUT. In any case the safest and easiest way is to use the reply command in your e-mail system. XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Contributed by the Editors May 31 MODEL FOR NEWS SUBMISSIONS Maximum line length is 72 characters. Place the text between two lines of x:ses. The first line should state "Contributed by " and followed by the contributor’s name, in brackets and the date. Then there should be a title line and the text. This info block should be sent to ISDG at FINHUT. XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Contributed by Alain Haurie May 30 FIRST CALL FOR PAPERS FIFTH INTERNATIONAL SYMPOSIUM ON DYNAMIC GAMES AND APPLICATIONS July 15-16, 1992, University of Geneva International Academy of the Environment 4, chemin de Conches, 1231 Conches-Geneva, Switzerland Organizer: D’epartement d’. -inomie commerciale et industrielle Sponsor: The International Society of Dynamic Games (ISDG) With the participation of: IFAC Mathematics of Control Committee IEEE Control Systems Society Local Organizing Committee: P. Allan, O. Bahn, E. Fragniere, A. Haurie, A. de Palma, M. Roche, J.P. Vial, C. van Delft Scientific Committee: P. Allan, T. Basar, A. Din, H. Ehtamo, J. Filar, G. Gambarelli, R.P. Hamalainen, A, Haurie, V. Kaitala, G. Leitman, G.J. Olsder, A. de Palma, G. Papavassilopoulos, M.L. Petit, G. Ricci, J. Rotmans, S.H. Tijs, B. Tolwinski, J.P. Vial, O.d. Vrieze The Symposium is the fifth one in a series of meetings dedicated to the area of dynamic games and is the official biannual scientific meeting of the ISDG. The aim of the meeting is to bring together researchers from various disciplines where dynamic game settings are studied, and to report the latest developments both in theory and applications. This year, in addition to the classical topics covered by the Conference which include, e.g., Zero-sum dynamic games, Pursuit-evasion problems, Nonzero-sum dynamic games, Incentive strategies, Cooperative equilibria, Dynamic bargaining models, Computational methods, Dynamic games in economics, Energy and Resource management, AI applications to dynamic games, the Symposium is putting a particular emphasis on the theme Dynamic Games and Environmental Management Modeling. The following topics are encompassed in this theme: Economic growth and environmental management, Energy planning with emission constraints, Cooperative strategies to reduce CO2 and/or acid gas emissions, Incentives for environmental management. Deadlines: February 1, 1992: Titles and extended (approximately 500 words) abstracts (three copies) March 1, 1992: Notification of acceptance of the paper April 15, 1992: Full paper Registration fee is USD 200,- if paid before May lst, 1992, and USD 275,- afterwards. Cancellation fee USD 50,- until June 30; no refunds after this date. Publication: A collection of papers presented at the Symposium is intended to be published in the Springer-Verlag’s Lecture Notes in Control and Information Sciences series. For further information, please contact: Alain HAURIE, Director, D’epartement d’economie commerciale et industrielle, Faculte SES, Universite de Geneve 2, rue de Candolle, CH-1204, Geneva Switzerland Tel: (int'l) 41 22 705 72 44 Fax: (int'l) 41 22 28 52 13 e-mail: HAURIE@CGEUGE11 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Contributed by Tamer Basar May 22 ANNOUNCING A ONE-WEEK COURSE Differential Games by J.-P.Aubin, P.Bernhard, H.Frankowska & M.Quincampoix DATES: September 30 - October 4, 1991 PLACE: INRIA - SOPHIA-ANTIPOLIS, F~06565 VALBONNE CX, FRANCE Course Contents: 1. Differential Games (An overview) 2. Barriers and Controllability Classical Approach Viability kernels and dynamic anatomy of a set The target problem: victory and defeat domains of a target 3. Hamilton-Jacobi-Isaacs Equations Classical Approach Contingent and viscosity solutions 3. Linear-quadratic theory Riccati equations and conjugate points Applications to minimax and H-infinity optimal controller design FOR MORE INFORMATION on this 25 hour graduate short course, CONTACT: Jean-Pierre Aubin CEREMADE, Universite de Paris-Dauphine F-75775 Paris cx (16) FRANCE Tel: [33] (1) 47-27-75=-27 FAX: [33] (1) 43-25-58-45 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Contributed by Tamer Basar May 21 ANNOUNCING A NEW BOOK H-infinity Optimal Control and Related Minimax Design Problems A Dynamic Game Approach Tamer Basar and Pierre Bernhard -From the Backcover- One of the major concentrated activities of the past decade in systems and control has been the development of the so-called "H-infinity optimal control theory,” which addresses the issue of worst-case controller design for linear plants subject to unknown disturbances. Among different time-domain approaches to this class of worst-case design problems, the one that uses the framework of dynamic (differential) game theory stands out as the most natural. This is so because the original H-infinity optimal control problem (in its equivalent time-domain formulation) is in fact a minimax optimization problem, and hence a zero-sum game, where the controller can be viewed as the minimizing player and the disturbance as the maximizing player. Using this framework, the authors develop in this book a complete theory that encompasses continuous-time as well as discrete-time systems, finite as well as infinite horizons, and several different measurement schemes, including closed-loop perfect state, delayed perfect state, sampled state, closed-loop imperfect state, delayed imperfect state and sampled imperfect state information patterzns. The authors believe that the theory is now at a stage where it can easily be incorporated into a second-level graduate course in a control curriculum, that would follow a basic course in linear control theory covering LQ and LOG designs. The framework adopted in this book indeed makes such an ambitious plan possible. For the most part, the only prerequisite is a basic knowledge of linear control theory. No background in differential games, or game theory in general, is required, as the requisite concepts and results have been developed in the book at the appropriate level. Furthermore, the book is written in such a way that makes it possible to follow the theory for the continuous- and discrete-time systems independently (and also in parallel). The general framework adopted, and the methodologies developed, also open new avenues of research for the reader, to extend these results to more general classes of systems, such as nonlinear plants and/or distributed parameter systems. Oxdering information: Title: H-infinity optimal control and related minimax design problems Authors: Tamér Basar and Pierre Bernhard Date: March 1991 Publisher: Birkhauser Series: Systems and Control: Foundations and Applications (Vol. 5) ISBN: 0-8176-3554-8 (USA and Canada) 3-7643-3554-8 (Europe) By mail: For USA and Canada: In Europe: Birkhauser Boston Birkhauser Verlag AG c/o Springer-Verlag New York, Inc. Postfach 133 P.O. Box 2485 CH-4010 Basel Secaucus, New Jersey 07096-2491 Switzerland USA By phone: 1-800-777-4643 in the USA ( 201/ 348-4033 in NJ) XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Contributed by the Editors May 31 ANNOUNCING NEW BOOKS Differential Games - Developments in Modelling and Computation Edited by R.P. Hamalainen and H.K. Ehtamo Proceedings of the 4th International Symposium on Differential Games and Applications, August 9-10, 1990, Helsinki University of Technology, Finland Lecture Notes in Control and Information Sciences, Vol. 156, April 1991 Eds.: M. Thoma, A. Wyner, Springer-Verlag ISBN 3-540-53787-2 Softcover DM 79,- -From the Springer-Verlag’s announcement- The present collection of articles shows that there is a strong new boom of interest in the area of dynamic games. The papers included in this volume give a relatively wide coverage of the new problems in the area. Thus it is likely to serve as a useful source of up to date problem formulations and references for established researchers as well as for new researchers who are entering this field. In these proceedings the papers have been grouped into four sections dealing with: - zero-sum differential games of pursuit-evasion type and their applications to aerospace problems; - search and discrete games; - robust controller design; - numerical and hierarchical methods. Dynamic Games in Economic Analysis Edited by R.P. Hamalainen and H.K. Ehtamo Proceedings of the 4th International Symposium on Differential Games and Applications, August 9-10, 1990, Helsinki University of Technology, Finland Lecture Notes in Control and Information Sciences, Vol. 157, April 1991 Eds.: M. Thoma, A. Wyner, Springer-Verlag ISBN 3-540-53785-6 Softcover DM 79,- -From the Springer-Verlag’s announcement- The theory of dynamic games is becoming an increasingly important tool in economic analysis. Many resource and environmental problems are naturally formulated as dynamic incentives, coordination and hierarchical organizations. Also energy economics is an area where dynamic solutions are used in real life problems. This volume gives a relatively wide coverage of examples of all these new developments. In these proceedings the papers have been grouped into four sections dealing with: - problems in management science and economics; - incentives and coordination; - resource management and environmental problems; - hierarchical gtame models and computational aspects. These volumes can be ordered from your local bookstore or directly from: Springer-Verlag Heidelberger Platz 3 D-1000 Berlin 33 Germany We would like to remark that the registration fee of the 4th DG Symposium covers one volume of the proceedings. These volumes will be sent to the participants as soon as we get the full shipment from Springer Verlag. Currently we only have single copies of the books which look very nice, XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX contributed by R.P. Hamalainen May 28 DOCTORAL THESES Jukka Ruusunen at the Systems Analysis Laboratory, Helsinki University of Technology, January 18, 1991. Official opponent: prof. Peter B. Luh, University of Connecticut Models of Intertemporal Bargaining Abstract. In this thesis bargaining situations where the contract covers multiple time periods are studied. The axiomatic approach is used to define the solution to the bargaining problem. This thesis presents approaches for generalizing the traditional bargaining models into a dynamic setting. The extension is, in principle, straightforward in dynamic cooperative games where the decision makers are ignorant or cannot observe the actual evolution of the game. From the theoretical point of view, the applicability of the game-theoretic approach depends on the computational requirements of the analysis. The thesis presents a hierarchical technique for the solution of intertemporal bargaining problems and shows its applicability in the context of cooperative Management of interconnected power systems. In real life problems the outcome of the game is often not completely controlled by the decision makers but there are unpredictable external random disturbances that influence the outcome. If the potential influence of the uncertainties is significant, they should be taken into account in the contract. The thesis develops models for contracting in the presence of future uncertainties. The paradoxical conclusion of the theory developed is that to obtain dynamic consistency of the solution, the controversial independence of irrelevant alternatives property of the axiomatization must be accepted. As a real life application, the thesis develops models for intertemporal electricity exchange in a power pool. XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX contributed by the Editors May 31 CONFERENCES Fourth Viennese Workshop on Dynamic Economic Models and Optimal Control Vienna, Austria, 12-14 June, 1991. For further information you may contact Professor Dr. G. Feichtinger Technical University of Vienna Department of Operations Research and Systems Theory Argentinierstrasse 8, A-1040 WIEN Austria Tel: +43(1)58801-4428 Fax: +43(1) 658453 E-Mail: E119RSK@AWITUWO1 The Society for Economic Dynamics and Control 1991 Meetings, June 18-20, 1991, Capri (the Hotel Europa Palace), Italy. The Program Chairman is Michele Boldrin MEDS /KGSM Northwestern University Evanston, IL 60208 USA Tel: 708-491-3550 Fax: 708-467-1220 For further information you may also contact: Marilu Petit Dipartimento di Informatica e Sistemistica via Buonarroti 12 00185 Rome Italy Tel: 39-6-3250743 (or 4873603) Fax: 39-6-4873628 E-Mail: PETIT@IRMIASI Internatonal Conference on Game Theory June 25-27, 1991, Fiesole (Florence), Italy For hotel information, registration etc., you may contact the Conference Chairman Piero Tani Dipartimento di Szienze Economiche Universita di Firenze via Curtatone 1, 50123 Firenze Italy Tel: (0)55/28-94-96 Fax: (0)55/21-89-93 The 30th IEEE Conference on Decision and Control, December 11-13, 1991, Brighton, England. General Chairman is Derek Atherton, University of Sussex, UK; the program chairman is Panos Antsaklis, University of Notre Dame, USA. Deadline for receipt of regular papers, short papers, and invited session proposals was March 1, 1991. For further information you may contact N.H. McClamroch Dep. Aerospace Eng. Univ. Michigan Ann Arbor, MI 48109-2140 USA or Panos Antsaklis Department of Electrical Engineering University of Notre Dame Notre Dame, IN 46556 USA E-mail: flxfsn@irishmvs.cc.nd.edu XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX End of ISDG E-letter 2, 31 May 1991