Three Decades of Progress in Control Sciences: Dedicated to Chris Byrnes and Anders Lindquist

395 Pages·2010·2.28 MB·English

by  J. Baillieul

Three Decades of Progress in Control Sciences

Xiaoming Hu, Ulf Jonsson, Bo Wahlberg, and
Bijoy K. Ghosh (Eds.)
Three Decades of Progress
in Control Sciences
Dedicated to Chris Byrnes and Anders Lindquist
ABC
Prof.Dr.XiaomingHu Prof.Dr.BoWahlberg
OptimizationandSystemsTheory Automaticcontrol
SchoolofEngineeringSciences SchoolofElectricalEngineering
KTH–RoyalInstituteoftechnology KTH–RoyalInstituteofTechnology
Sweden Sweden
E-mail:[email protected] E-mail:[email protected]
Prof.Dr.UlfJonsson Prof.Dr.BijoyK.Ghosh
OptimizationandSystemsTheory MathematicsandStatisticsDepartment
SchoolofEngineeringSciences TexasTechUniversity
KTH–RoyalInstituteoftechnology Lubbock,Texas
Sweden USA
E-mail:[email protected] E-mail:[email protected]
ISBN978-3-642-11277-5 e-ISBN978-3-642-11278-2
DOI10.1007/978-3-642-11278-2
LibraryofCongressControlNumber:2010935850
(cid:2)c 2010Springer-VerlagBerlinHeidelberg
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DedicatedtoChristopherI.ByrnesandAndersLindquist
fortheirlifelongcontributionsinSystemsandControlTheory

ChristopherI.Byrnes AndersLindquist

Preface
In this edited collection we commemorate the 60th birthday of Prof. Christopher
ByrnesandtheretirementofProf.AndersLindquistfromtheChairofOptimization
andSystemsTheoryatKTH.Thesepaperswerepresentedinpartata2009workshop
in KTH, Stockholm, honoringthe lifetime contributions of Professors Byrnes and
Lindquistinvariousfieldsofappliedmathematics.
Outstandingintheirfieldsofresearch,ByrnesandLindquisthavemadesignif-
icant advances in systems & control and left an indelible mark on a long list of
colleaguesandPhDstudents.Ascoeditorsofthiscollection,wehavetriedtoshow-
casepartsofthisexcitinginteractionandcongratulatebothByrnesandLindquistfor
theiryearsofsuccessfulresearchandashiningcareer.
About a quarter of a century ago, Anders Lindquist came to KTH to provide
newleadershipfortheDivisionofOptimizationandSystemsTheory.In1985Chris
spent his sabbatical leave at KTH, and the two of them organizedthe 7th Interna-
tional Symposiumon the Mathematical Theory of Networks and Systems (MTNS
85) at KTH that showcased both the field and a thriving academic division at the
universityandhighlightedthestartofalonglastingcollaborationbetweenthetwo.
Chris Byrnes was recruited recently as a Distinguished Visiting Professor at KTH
tocontinuewhathasnowbecomeaverysuccessfulresearchprogram,someresults
fromwhichwillbementionedbelow.
ChrisByrnes’scareerbeganasaPhDstudentofMarshallStone,fromwhomhe
learnedthatagoodapproachtodoingresearchhastobeginwithanunderstandingof
whatmakestheproblemhardandmustultimatelybringtherightmixtureofapplied
andpuremathematicstechniquestobearontheproblem.What is characteristicof
hiscontributionsistheunanticipatedapplicationofseeminglyunrelatedbranchesof
puremathematics.Thiswasexhibitedearlyinhiscareerwiththeapplicationoftech-
niquesfromalgebraicgeometrytosolvesomelong-standingopenproblems,suchas
pole-placementbyoutputfeedback,inclassicallinearcontrolsystems.Incharacter-
istic form, he made this seem understandableand inevitable because “the Laplace
transformturns the analysis of linear differentialsystems into the algebraof ratio-
nal functions.” In collaboration with Alberto Isidori, he helped transform modern
nonlinearcontrolsystemsusingnonlineardynamicsandthegeometryofmanifolds,