From bradley@ivy.princeton.edu Fri Nov 11 09:56:07 1988 Date: Thu, 10 Nov 88 23:54:41 EST From: bradley@ivy.princeton.edu (Bradley Dickinson) To: eletter-local@ivy.princeton.edu E-LETTER on Systems, Control, and Signal Processing ISSUE No. 16, 11 Nov 1988 Editors: Bradley W. Dickinson Dept. of Electrical Engineering Princeton University Princeton, NJ 08544 bradley@princeton.edu Eduardo D. Sontag Dept. of Mathematics Rutgers University New Brunswick, NJ 08903 sontag@fermat.rutgers.edu (arpanet) or sontag@pisces (bitnet) Welcome. We remind you that items for posting can be emailed to either of the editors. PLEASE SEND CONTRIBUTIONS, since the eletter can only be useful if everyone participates. Selected back issues of the newsletter, as well as the complete mailing list (currently about 500 names) can be requested from Sontag at either of the above addresses. If problems arise in distribution of the eletter, e.g. an incomplete file received, please request retransmission from Dickinson. In the next issue we will start a "personals" section in which we post promotions, moves, visiting positions, and so forth. We encourage all Eletter readers to send us infomation for this column. Lists of short-term visitors to your institution, for instance, would be useful to people in your general geographical area wishing to invite them for a talk. NOTE: if you are using an editor to read this mailing and if at any point you wish to skip to the next article, you can accomplish this by searching for the string: *.** Contents Changes to mailing list MCSS - Table of Contents for Vol. 2, Number 1 SYSTEMS & CONTROL Letters - Tables of Contents for Vol. 11, Issues 3-5 - Author and Subscription Information News from the Center for Intelligent Control Systems Positions Available: University of Florida (Math) Northwestern University (Electrical and Comp. Engr.) University of Louvain la Neuve, Belgium (Control and Systems) Portland State University (Math) A.M.S. short course on Matrix Theory and Applications Linear Algebra and Its Applications - Announcements of 2 Special Issues International Linear Algebra Society Inaugural Meeting Workshop On Integrated Engineering Workstations at Bucknell Intelligent Control -- request for references and discussion REPRINT: Editorial from MCSS Vol. 2, Number 1. *.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.** Contributed by the Editors: Changes/Additions to mailing list. Corrections: ----------- hermes@euclid.colorado.edu (Henry Hermes) [Previous listing missprinted] Changes: ------- ocone@math.rutgers.edu (Dan Ocone, Rutgers Univ.) bfw@osupyr.mast.ohio-state.edu (Bostwick F. Wyman, Ohio State Univ.) autstud3@nimbus.ethz.ch (Karl Heinz Kienitz, ETH, Zurich, Switzerland) jcrowley@hqafsc-lons.arpa (Jim Crowley, AFOSR, Washington, DC) fabrizio@rtop71.jpl.nasa.gov (Fabrizio Pollara, JPL, Pasadena, CA) seidman@umbc1.umd.edu (Thomas Seidman, Univ. of Maryland, Baltimore Co.) seidman@umbc.bitnet (alternate address for Thomas Seidman) hvs@pender.ee.upenn.edu (Henrik Sorensen, Univ. of Pennsylvania) eps@notecnirp.princeton.edu (Elisha Sacks, Princeton Univ.) woods@mts.rpi.edu (John Woods, Rennselaer Polytechic Inst.) Additions: --------- avaz@BNR.bitnet (Anthony Vaz, Bell-Northern Research) alq@nada.kth.se (Anders Lindquist, Royal Inst.of Technology, Sweden) LO@umbc.bitnet (James Lo, Univ.of Maryland/Baltimore County) EE_BASAR@IITVAX.BITNET (Tangul Basar, Illinois Inst. of Technology) lk@sigurd.sunet.se (Lindi Karlsson, Uppsala Univ., Sweden) umez019@frors31.bitnet (J. Descusse) umez020@frors31.bitnet (J.F. Lafay and M. Malabre) vvp@stc10.ctd.ornl.gov [VVP@ORNLSTC.bitnet] (Vladimir Protopopescu, Oak Ridge) GRX0446@uoft02.bitnet (Sridhar Balaji, Elec.Eng, Univ. of Toledo, OH) NAGKVF@vax.oxford.ac.uk (Vince Fernando, Oxford Univ., England) schumitzky@ecla.usc.edu (Alan Schumitzky, Math Dept, USC, Los Angeles) shadwick@mcmaster.bitnet (W. Shadwick, McMaster Univ., Canada) HMJO@psuorvm.bitnet (Joyce O'Halloran, Portland State Univ.) tran@krakatoa.stanford.edu (Hy Tran, Stanford Univ.) dwg@dip.eecs.umich.edu (Danwei Wang, Univ. of Michigan, Ann Arbor) jjs@digsys.engineering.cambridge.ac.uk (Jeffrey J. Shifman, Cambridge Univ.) limyc@nusvm.nus.ac.sg (Y.C. Lim, Univ. of Singapore) gabel@xu.ll.mit.edu (Robert Gabel, Lincoln Labs, Lexington, MA) mintzer@ibm.com (Fred Mintzer, IBM T.J. Watson Rsch., Yorktown Hgts., NY) pschow@portia.stanford.edu (Peter Chow, Stanford Univ.) dasgupta@jean.eng.uiowa.edu (Soura Dasgupta, Univ. of Iowa) lee@triumfcl.bitnet (Richard Lee, Canadian Nat'l. Meson Facility) relliott@ualtavm.bitnet (Robert J. Elliott, Univ. of Alberta, Canada) ifblake@water.waterloo.edu (Ian Blake, Univ. of Waterloo, Canada) davidc@karri.eecs.unsw.oz (David Clements, Univ. of New South Wales, Australia) shahriar@wiliki.eng.hawaii.edu (Shahriar Negahdaripour, Univ. of Hawaii) gopal@vtvm1.cc.vt.edu [gopal@vtvm1.bitnet] (Gopal Vasudavan, Univ. of Vermont) acs@mts.rpi.edu (Art Sandersons, Rennselaer Polytechic Inst.) wen@ral.rpi.edu (John Wen, Rennselaer Polytechic Inst.) saridis@ral.rpi.edu (George Saridis, Rennselaer Polytechic Inst.) kelly@ral.rpi.edu (Bob Kelly, Rennselaer Polytechic Inst.) desrochers@ral.rpi.edu (Alan Desrochers, Rennselaer Polytechic Inst.) *.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.** Contributed by the Editors MCSS Vol. 2, Issue 1 -- Table of Contents Editorial Optimal Control of Large Space Structures Governed by a Coupled System of Ordinary and Partial Differential Equations Saroj K. Biswas and N.U. Ahmed Singularities and Normal Forms of Observed Dynamics B. Jakubczyk and K. Tchon Oblique Projections: Formulas, Algorithms, and Error Bounds S. Kayalar and H.L. Weinert On Supremal Languages of Classes of Sublanguages that Arise in Supervisor Synthesis Problems with Partial Observation H. Cho and S.I. Marcus A State Space Approach to the Problem of Adaptive Pole Placement J.W. Polderman *.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.** Contributed by Jan Willems SYSTEMS & CONTROL Letters CONTENTS OF VOLUME 11 Issue 3 September 1988 Glover, K. and J.C. Doyle State-space formulae for all stabilizing controllers that satisfy an H-infinity-norm bound and relations to risk sensitivity Fu, M. and B.R. Barmish Maximal unidirectional perturbation bounds for stability of polynomials and matrices Sontag, E.D. Bilinear realizability is equivalent to existence of a singular affine differential i/o equation Frankowska, H. and B. Kaskosz A maximum principle for differential inclusion problems with state constraints Feng, W. Characterization and computation for the bound of epsilon in the time- invariant singularly perturbed systems Yeh, F.-B. and T.-S. Hwang A computational algorithm for the super-optimal solution of the model matching problem Elabdalla, A.M. and M.H. Amin Minimum-gain minimum-time deadbeat controllers Yakubovich, V.A. Dichotomy and absolute stability of nonlinear systems with periodically nonstationary linear part Monaco, S. and D. Normand-Cyrot Zero dynamics of sampled nonlinear systems Belbas, S.A. The dynamic programming equations for stochastic games with discrete actions Bitsoris, G. On the positive invariance of polyhedral sets for discete-time systems Weibel, C.A. Complex-valued functions on the plane are pole-assignable CONTENTS OF VOLUME 11 ISSUE 4 October 1988 Georgiou, T.T. On the computation of the gap metric Foias, C. and A. Tannenbaum Some remarks on optimal interpolation Curtain, R.F. and H.J. Zwart A note on spectral realisations for delay systems Dahleh, M. and Y. Ohta A necessary and sufficient condition for robust BIBO stability Hill, D.J., C. Wen and G.C. Goodwin Stability analysis of decentralised robust adaptive control van der Woude, J.W. A note on pole placement by static output feedback for single-input systems Banaszuk, A., M. Kociecki and K.M. Przyluski On almost invariant subspaces for implicit linear discrete-time systems Ishihara, T. Sensitivity properties of a class of discrete-time LQG controllers with computation delays Rohlicek, J.R. and A.S. Willsky Multiple time scale decomposition of discrete time Markov chains Schmale, W. On generic reachability over certain Banach-algebras Xiao-hua Xia and Wei-bing Gao On exponential observers for nonlinear systems Savona, C. Approximate nonlinear filtering for piecewise linear systems Banek, T. Filtering of some nonlinear diffusions satisfying the general Benes condition CONTENTS OF VOLUME 11 ISSUE 5 November 1988 Rogozinski, M.W. and M.J. Gibbard Long-range predictive control-closed-loop system analysis Guo, L. and H.F. Chen A method for adaptive estimation of ARMA processes Dahleh, M. Sufficient information for the adaptive stabilization of delay systems Packard, A. and J.W. Balsamo A maximum modulus theorem for linear fractional transformations Hosoe, S. An elementary state space approach to RH-infinity optimal control Dasgupta, S. Kharitonov`s theorem revisited Dontchev, A.L. and J.I. Slavov Lipschitz properties of the attainable set of singularly perturbed linear systems Mariton, M. Almost sure and moments stability of jump linear systems Khoi T. Vu and Chen-hing Liu Analysis of Dynamic Voltage collapse mechanism for a three-bus power system Gusev, S.V. Linear stabilization of nonlinear system program motion Golden, M.P. and B.E. Ydstie Bifurcation in model reference adaptive control systems INSTRUCTIONS FOR AUTHORS Contributors should mail 3 copies of their manusript to the managing editor: J.C. Willems, Mathematics Institute, University of Groningen, P.O. Box 800, 9700 AV Groningen, THE NETHERLANDS. Mailing address: Zandsteenlaan 16, 9743 TN Groningen, THE NETHERLANDS. SUBSCRIPTION INFORMATION SYSTEMS & CONTROL Letters (ISSN 0167-6911) is published in two volumes of five issues a year. The subsription price for 1988 (comprising volumes 10 & 11) is Dfl. 510 + Dfl. 52 for postage and handling. Mail orders and inquiries to: Elsevier Science Publishers B.V., Journals Department, P.O. Box 211, 1000 AE Amsterdam, THE NETHERLANDS. *.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.** Contributed by: Betty Lou McClanahan (BL@lids.mit.edu) Center for Intelligent Control Systems (CICS) Newsletter Available The October 1988 issue of "The Intelligent Control Letter," the Newsletter of the Center for Intelligent Control Systems (CICS), is now available free-of-charge. The focus of the issue is CICS research in Image Analysis and Vision (work of D. Mumford and J. Shah, S.K. Mitter, T. Richardson, B. Gidas) and Learning (work of L. Valiant). Also included is an editorial by S.K. Mitter, a listing of available publications and information on the Colloquium series and theses in progress. To request the October issue and/or to be added to the mailing list for future issues, contact (preferably by e-mail): CICS Headquarters M.I.T. Room 35-308 Cambridge, MA 02139 telephone: 617-253-2141 center@lids.mit.edu The Center for Intelligent Control Systems combines distinguished faculty from M.I.T., Harvard University and Brown University in interdisciplinary research in the foundations of intelligent machines and intelligent control systems. Established in October 1986, CICS is headed by Professor Sanjoy Mitter, M.I.T., Director; Professor Roger W. Brockett, Harvard University, Associate Director; and Professor Donald E. McClure, Brown University, Associate Director. The research activities of the Center are loosely grouped as follows: Signal Processing, Image Analysis and Vision; Control; Mathematical Foundations of Machine Intelligence; Distributed Information and Control Systems; and Algorithms and Architectures. There is a postdoctoral and visitors program in support of the research program. A number of outstanding graduate students are appointed Graduate Fellows. Workshops, research reviews, colloquia and seminars are regularly held. A brochure describing CICS research and related activities is available from the address listed above. *.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.** Contributed by: hager@lab2.math.ufl.edu (Bill Hager) Positions Available at the University of Florida (MATH) The Mathematics Department at the University of Florida is in the third year of a five year program to fill over 20 new tenure track faculty positions. The department invites applications for 6 tenure-track positions for the fall semester, 1989. Outstanding candidates in all areas of applied and pure mathematics are invited to apply for these positions. One position will be reserved for a senior candidate in partial differential equations. Candidates should forward a resume (including a list of publications) and should arrange for at least 3 letters of recommendation to be sent to: David A Drake, Chair Department of Mathematics University of Florida Gainesville, FL 32611 All applications for the academic year 1989-1990 must be completed by December 31, 1988. The University of Florida is an equal opportunity employer. *.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.** Contributed by Barry Sullivan FACULTY POSITIONS IN ELECTRICAL ENGINEERING AND COMPUTER SCIENCE NORTHWESTERN UNIVERSITY The Department of Electrical Engineering and Computer Science at Northwestern University expects to have tenure track faculty openings at all levels starting with the academic year 1989-90. Our areas of emphasis are: artificial intelligence, foundations of computer science, distributed processing, and solid state devices. Outstanding candidates in other areas will also be considered. All candidates must have strong research and teaching capabilities. Northwestern University is an affirmative action/equal opportunity employer and encourages applications from women and members of minority groups. Hiring is contingent upon eligibility to work in the United States. Applicants should have attained a doctoral degree in electrical engineering, computer science, computer engineering, or a closely related field by the starting date of the appointment. Candidates for higher level positions must have a demonstrated record of research in industrial or academic settings. Interested persons should send their resumes and the names and addresses of at least four references to: Professor A. H. Haddad, Chairman Department of Electrical Engineering and Computer Science Northwestern University Evanston, Illinois 60208 (312) 491-3641 *.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.** Contributed by: Michel Gevers ACADEMIC POSITIONS OPEN University of Louvain la Neuve, Belgium The Automatic Control Group of the University of Louvain-la-Neuve, Belgium, announces several positions connected with a 5-year government grant for basic research in control and systems theory. One visiting faculty position (for visits of 1 to 6 months, continuously for the next 5 years), one postdoctoral position (for consecutive 1 to 2 year terms starting in July 1989), and two 4-year graduate scholarships for PhD students. Applications should be sent as soon as possible for the Visiting Professor position and the graduate scholarships, and by March 1, 1989, for the postdoctoral position. For information and applications, contact Prof. Michel GEVERS or Georges BASTIN, Louvain University, Batiment Maxwell, B-1348 Louvain la Neuve, Belgium (e-mail: prlb2!lln-cs!gevers on the UUCP network). *.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.** Contributed by: Joyce O'Halloran (HMJO@psuorvm.bitnet) POSITIONS AT PORTLAND STATE (Math) 3 tenure-track positions at asst. professor rank beginning 9/16/89: statistics, applied math, pure math. Salary $28,000-$32,000. Send vita and 3 letters of reference to Bruce Jensen, Chair, Dept. of Math. Sci., Portland State University, P.O. Box 751, Portland, OR 90207-0751. PSU is an Equal Opportunity/Affirmative Action Employer. Minorities, women, and members of other protected groups are encouraged to apply. *.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.** Contributed by: Charlie Johnson (reprinted from IMG newsletter) A.M.S. short course on Matrix Theory and Applications Dates: January 10,11, 1989 Place: Phoenix, Arizona in conjunction with AMS annual mtg Organizer: Charles R. Johnson, William and Mary Additional Speakers: Richard Brualdi, Wisconsin Persi Diaconis, Harvard Israel Gohberg, Tel Aviv Univ. Roger Horn, Johns Hopkins Arunava Mukherjea, South Florida Ingram Olkin, Stanford Theme: The interplay between matrix theory and variety of subjects, emphasizing how each helps the development of the other. Comments: The AMS Short Course is an annual event featuring 7 75 minute talks centered around a single subject and a accessible to a broad professional audience. We are very happy that the AMS has recognized matrix theory for this year's event, and the speakers have been chosen for their oral and written exposition as well as their expertise in a field in which matrix theory is involved. It promises to be a very worthwhile event for those who work in matrix theory as well as those who would like to know more about the subject. More detailed information, as well as preregistration instructions may be found in the October Notices. We hope that you will be able to attend. *.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.** Contributed by: hs@vanvleck.math.wisc.edu (Hans Schneider, Ed-in-chief, LAA) LINEAR ALGEBRA AND ITS APPLICATIONS Special Issue on LINEAR ALGEBRA IN IMAGE RECONSTRUCTION FROM PROJECTIONS Reminder This special special issue of LAA is still open for submissions. It is intended to include papers in linear algebra and optimization theory which are related to computerized tomography and other image reconstruction techniques for medical and other purposes. See LAA, Vol.99 (1988), for the full announcement of the issue and see Censor's article in SIAM News, Vol.21 (#4, July 1988) pp.14-15, for a general description of the area. The special editors wish to encourage you to submit your paper for consideration. Yair Censor, Haifa, Israel. (e-mail: rsma403@haifauvm.bitnet). Gabor T. Herman, Philadelphia, PA, USA (e-mail: herman@cis.upenn.edu). Tommy Elfving, Linkoping, Sweden (e-mail: t-elfving%linnea.liu.se@uunet.uu.net). - - - - - - - - - - - - - - - - LINEAR ALGEBRA AND ITS APPLICATIONS Special Isuue on MATRIX CANONICAL FORMS Linear Algebra and its Applications is pleased to announce a special issue on Matrix Canonical Forms. Contributions for the special issue are invited in any area in which matrix canonical forms play a role. New canonical forms motivated by modern applications, new approaches to calculating, interpreting, or applying old or new canonical forms, and surveys of theoretical and applied areas are all welcome. Papers should meet the usual publication standards of LAA and will be refereed in the usual way. The deadline for submission of manuscripts is November 1989, and publication of the special issue is expected about a year later. Papers may be sent to any of the three special editors of the matrix canonical forms issue: Roger A. Horn Department of Mathematical Sciences The Johns Hopkins University Baltimore, Maryland 21218 USA (msc_hrah@jhuvms.bitnet) Thomas J. Laffey Mathematics Department University College Dublin Dublin (4) Ireland (tlaffey@irlearn.bitnet) Russell L. Merris Department of Mathematics California State University Hayward, California 94542 USA *.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.** Contributed by Hans Schneider INAUGURAL MEETING: INTERNATIONAL LINEAR ALGEBRA SOCIETY August 12-15, 1989 Brigham Young University Provo, Utah USA FIRST ANNOUNCEMENT The purpose of this first general meeting of ILAS (IMG) is to provide an opportunity for researchers everywhere with an interest in matrix theory to get together. The term "matrix theory" is broadly interpreted and is meant to include those parts of the many subjects that have stimulated research about matrices over the years. In an effort to maximize the number of interested parties who can attend, the cost of attending is being kept to a minimum. Centrally located Salt Lake City International Airport is nearby and is serviced be most major US carriers. A limited number of on-campus housing slots will be available at a very low cost, along with an inexpensive meal plan of good quality. Nearby motels will offer a very affordable alternative. There will be no registration fee as such, although a nominal and optional donation to the Society and for daily refreshments will be solicited. In addition, within easy driving distance from Provo lie a large fraction of the many spectacular attractions of the Rocky Mountain West. In addition to Yellowstone, the Grand Canyon, Bryce Canyon and Zion Park are a host of lesser known, but nearly as enjoyable parks. A tour on either side of the meeting would be worth it by itself. A special concentration at the meeting on nonnegative matrices and related topics is to be modestly funded by the US NSA. Additional subsidy is being graciously provided by Brigham Young University and the time, effort and research funds of the organizers. We hope that you can make the meeting a success with your attendance. Please contact Wayne Barrett or any other organizer by electronic mail or in writing with your interest in attending. We hope you will do this soon, as this would be helpful for planning the program. A special issue of Linear Algebra and its Applications will be devoted to the meeting. This issue will contain only papers that meet the publication standards of the journal, and that will be approved in a normal refereeing procedure. Special editors of this issue are Wayne Barrett, Danny Hershkowitz, and Don Robinson. The organizers of the meeting are: Wayne Barrett Danny Hershkowitz Charlie Johnson Dept. Mathematics Dept. Mathematics Dept. Mathematics Brigham Young Univ. Univ. of Wisconsin Coll. of William & Mary Provo, UT 84602 Madison, WI 53706 Williamsburg, VA 23185 Chairman of committee Hans Schneider Bob Thompson Dept. Mathematics Dept. Mathematics Univ. of Wisconsin Univ. of California Madison, WI 53706 Santa Barbara, CA 93106 E-mail addresses of organizers are: barrettw@byuvax.bitnet (Barrett) hershkow@sterling.math.wisc.edu (Hershkowitz) #crjoh2@wmmvs.bitnet (Johnson) hs@vanvleck.math.wisc.edu (Schneider) 4551rct@ucsbuxa.bitnet (Thompson) *.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.** Contributed by: ABURDENE@bknlvms.bitnet (Maurice F. Aburdene) Workshop On Integrated Engineering Workstations for Science and Engineering Faculty Bucknell University The purpose of this workshop is to offer undergraduate faculty the opportunity to learn about several types of Integrated Engineering Workstations (IEW's) of varying complexity and capabilities. An IEW consists of microcomputer interfaced to data acquisition, test, and control instrumentation. Through experimental hand-on experiences in laboratory sessions. The participants will also develop an experiment and course materials for their own laboratory. Two similar one week sessions will be offered on: July 9-14, 1989 July 16-21, 1989 at Bucknell University Electrical Engineering Department Lewisburg, Pa. 17837 717-524-1234 Participant Support ------------------- The workshop is sponsored by the National Science Foundation and Bucknell University. There are no registration fees or tuition expenses for this workshop. A stipend of $250 will be paid to each selected participant. Housing will be in air-conditioned residential areas on Bucknell's beautiful campus and meals in our cafeteria and will be covered by the National Science Foundation. The participants are responsible for their travel expenses and other incidental expenses. Participant Selection --------------------- The selection process will rely heavily on the nomination by department heads or chairs of the participants home institution. The workshop is intended for teachers of science and engineering in the US committed to undergraduate education who have not yet had extensive exposure to integrated engineering workstations. The selected participants will develop an experiment and class material for implementation at their institution. We will sustain the development of the experiments by providing information through an electronic mail network. We use Bitnet (Aburdene@BKNLVMS.Bitnet). The selected participants are required to submit a project proposal outlining the work to be undertaken after the short course. We will be pleased to help the participants formulate their proposals. Workshop Outline ------------------ We will begin with fundamental computer concepts, proceed to workstation concepts, and conclude with applications. Ample time will be provided to planning and construction of the participants projects. Our IEW's include personal computers with data acquisition and control instruments (mostly Hewlett-Packard computers and HPIB instruments), personal computers with PC instruments, and a lab with an ethernet network of computers using IEEE-488 instruments for distributed data acquisition and control. Workshop Faculty ---------------- Maurice F. Aburdene, Professor of Electrical Engineering and Computer Science Edward J. Mastascusa, Professor of Electrical Engineering William J. Snyder, Professor of Chemical Engineering Jeff Gum, Consultant Workshop Assistants ------------------ Wade Hutchison, College Engineer Tom Thul, Technician Constance O. Snyder, Industrial Associates Program Daniel Shaffer, undergraduate Student Application Form ---------------- The application form may be returned by electronic mail or through US mail to Aburdene@BKNLVMS.Bitnet Or Maurice Aburdene Electrical Engineering Department Bucknell University Lewisburg, PA 17837 717-524-1449 Application Form (Deadline for Applications May 31, 1989. Selected participants will be notified as applications arrive) Name of applicant: College or University: Mailing Address: Session 1 (July 9-14, 1989): or Session 2 (July 16-21,1989): Department Chair: Address of Department Chair and Applicant: Telephone Number: Electronic Mail Address (if available): Special Needs: End of application form *.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.** Contributed by: Roy Eagleson INTELLIGENT CONTROL -- request for references and discussion It has been argued that the intelligent function of cognitive agents is tied to their ability to manipulate abstract representations of perceptual information as symbolic structures. At that level, the agent initiates voluntary motor programs, guided by goals, beliefs and world knowledge. This forms the top level of a modular sensorimotor hierarchy. Information then flows down (as Bernstein, Saltzman, Albus, Hildreth and Hollerbach, and many others have proposed) through abstract levels and representational forms including topological descriptions of action, global environmental reference, body-centred and effector-specific coordinates, and finally to kinematic, dynamic, and actuator-based references. At any of these levels, there may be adaptive feedback, learning, etc, and communication with corresponding levels on the sensory hierarchy. I'd like to know what research has been done in applying the framework of the full `Ergodic Theory' (developed over the last half-century) to Intelligent control and Perceptual-Motor control. A list of the theory's proponents starts with von Neumann, and would include intense recent work by Cornfeld, Peterson, Zames, and by the Russian theorists, Fomin, Sinai, Kolmogorov, Linnik, and no doubt many others. This framework seems particularly well-suited for intelligent control; in that it encompasses Hamiltonian Dynamics, stochastic control, group theory in dynamics and perception, metric and topological representations of transformations, Entropy, Information Theory, Qualitative Reasoning, and Symbolic Computation. While many researchers are very active at one particular abstract level, I would like to collect references to research which attempts to span several levels, or deals with the information-preserving characteristics of transformations from one level to the next I am very interested in comments about the above as well as pointers into the literature. Please send any comments directly to me, and I will summarize them for a future Eletter issue. Roy Eagleson (519) 661-2063 Centre for Cognitive Science CDN: elroy@uwo.ca Social Science Building, Rm 7332 EDU: elroy@ai.toronto.edu University of Western Ontario BITNET: eagleson@uwovax.bitnet London, Ontario ARPA: elroy%ai.toronto.edu@relay.cs.net CANADA N6A 5C2 elroy@julian.uucp (...watmath!julian!elroy) *.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.** Contributed by the Editors. (C) 1989, Springer-Verlag New York. Reprinted with permission. REPRINT: Editorial from MCSS, Vol. 2, Number 1 This issue marks the beginning of the second volume of MCSS. A total of 20 papers, 301 pages in all, appeared in the first volume. We are pleased to announce that the frequency of publication has been increased, and that MCSS will now appear quarterly. Another change is in our Board of Associate Editors, which will benefit from the expertise of Professors Ruth Curtain and Michel Gevers. The response to our call for papers has exceeded our expectations, and a large number of excellent papers have been received. We plan to keep increasing our standards, in accordance with our goal of making MCSS an archive for the highest-quality papers in the area. We have noticed a tendency by authors to send very long manuscripts; sometimes these include routine calculations that could be reproduced without much effort by the reader, or an excess of detail in examples. While still emphasizing the need for careful introductions and motivations, we have concluded that there is a need for a policy discouraging submissions of unnecessary length. Hereafter, manuscripts received whose length is greated than 50 double-spaced (or equivalent) typed pages will be automatically returned to the authors, unless accompanied by a detailed letter providing a justification for exceptional treatment. This 50 page limit should be considered an absolute upper bound rather than a suggested length; Associate Editors and reviewers will be instructed to pay careful attention to conciseness as an important characteristic of good mathematical exposition. We again take the opportunity of an editorial to thank all those that have made possible the success of MCSS. In particular, we offer our sincere appreciation to the Associate Editors for their diligent efforts and to the reviewers who spend so much time in what is often a thankless task. Suggestions and questions are welcome; electronic mail addresses for the Managing Editors are included in the instructions for authors. -The Managing Editors *.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.*.** End of eletter 16