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1、HJBEquationsfortheOptimalControlofDierentialEquationswithDelaysandStateConstraints,II:VericationandOptimalFeedbacksSalvatoreFederico,BenGoldys,FaustoGozziTocitethisversion:SalvatoreFederico,BenGoldys,FaustoGozzi.HJBEquationsfortheOptimalControlofDif-feren
2、tialEquationswithDelaysandStateConstraints,II:VericationandOptimalFeedbacks.2011.HALId:hal-00583124https://hal.archives-ouvertes.fr/hal-00583124Submittedon4Apr2011HALisamulti-disciplinaryopenaccessL'archiveouvertepluridisciplinaireHAL,estarch
3、iveforthedepositanddisseminationofsci-destineeaudep^otetaladiusiondedocumentsenticresearchdocuments,whethertheyarepub-scientiquesdeniveaurecherche,publiesounon,lishedornot.Thedocumentsmaycomefromemanantdesetablissementsd'enseignementetdeteachingand
4、researchinstitutionsinFranceorrecherchefrancaisouetrangers,deslaboratoiresabroad,orfrompublicorprivateresearchcenters.publicsouprives.HJBEquationsfortheOptimalControlofDierentialEquationswithDelaysandStateConstraints,II:VericationandOptimalFeedbacksSa
5、lvatoreFedericoyBenGoldyszFaustoGozzixApril4,2011AbstractThispaper,whichisthenaturalcontinuationof[14],studiesaclassofoptimalcontrolproblemswithstateconstraintswherethestateequationisadierentialequationwithdelays.In[14]theproblemisembeddedinasuitableHilber
6、tspaceHandtheregularityoftheassociatedHamilton-Jacobi-Bellman(HJB)equationisstudied.Thegoalofthepresentpaperistoexploittheregularityresultof[14]toproveaVericationTheoremandndoptimalfeedbackcontrolsfortheproblem.Whileitiseasytodeneafeedbackcontrolformally
7、followingtheclassicalcase,theproofofitsexistenceandoptimalityishardduetolackoffullregularityofVandtotheinnitedimensionalityoftheproblem.Thetheorydevelopedisappliedtostudyeconomicproblemsofoptimalgrowthfornonlineartime-to-buildmodels.Inparticular,weshowthee
8、xistenceanduniquenessofoptimalcontrolsandtheircharacterizationasfeedbacks.Keywords:Hamilton-Jacobi-Bellmanequation,optimalcontrol,delayequations,vericationtheorem.A.M.S.SubjectClassication:34K35,49L2