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1.
IntroductionInPartⅠofthisseries (see [1 ] )weproposeamethodtoextendanoperatorTdefinedinaspaceofcontinuousfunctionstoanoperatorT definedinaspaceofcontinuousset_valuedfunctions ,viaSteinerselections.Westudysomepropertiesofthisextensionandalsoweanalyzesomerel…  相似文献   

2.
IntroductionThroughoutthispaperwesupposethatXisarealBanachspace,X isitsdualspace ,〈· ,·〉isthepairingofXandX .D(T)andR(T)denotethedomainandtherangeofTrespectively .LetT ,A :X →X ,g :X→X bethreemappingsandφ :X →R∪ ∞ aproperconvexlowersemi_continuousfunction .In 1 999,th…  相似文献   

3.
Ishikawa Iterative Process in Uniformly Smooth Banach Spaces   总被引:2,自引:0,他引:2  
LetEbeauniformlysmoothBanachspace ,KbeanonemptyclosedconvexsubsetofE ,andsupposeT :K→KisacontinuousΦ_stronglypseudocontractiveoperator.DenotethedualspaceofEbyE .WedenotebyJthedualitymapfromEto 2 E definedbyJ(x) =f∈E :〈x ,f〉=‖x‖2 =‖f‖2 . ( 1 )Itiswell_knownthatifEisu…  相似文献   

4.
IntroductionFindingsufficientconditionsfornonoscillatoryofsolutionsisaproblemofgeneralinterestinthetheoryofordinaryanddelaydifferentialequations.Inthisworkweconsiderdds σ(s) dds r(s) dxds +q(s) dxdsβ +p(s)xα =f(s) ,(1)whereσ ,r,q,pandfarereal_valuedcontinuousfuncti…  相似文献   

5.
IntroductionConsidertheindirectcontrolsystem x =Ax Bφ(σ) , σ =CTx ρφ(σ) ,(1 )wherex∈Rn,σ ∈R ,Aisn×nstablematrix ,BandCarendimensionalvectors,thesymbolTstandsfortransposition ,ρisaconstant,function φ(σ) :R →Riscontinuousandsatisfiesconditionσφ(σ) >0   ( σ∈R ,σ≠ 0 ) . (2 )Manyspe…  相似文献   

6.
IntroductionBifurcationandfractaltheoryaretwoimportantbranchesofnonlinearscience.Thebifurcationis:forcontinuous_timedynamicalsystemx=f(x,t,α)ordiscretedynamicalsystemx|→g(x,α)(wheregismapg:Rn×R→Rn),whentheparameterαchangescontinuouslyandpassesα0,thetopologic…  相似文献   

7.
Time-shifting correcting method of phase difference on discrete spectrum   总被引:3,自引:0,他引:3  
Nomenclaturex(t) Onesegmentofcontinuousspecimengottenbysamplingtheharmonicsignalθ Phaseofsampledsignalθ0  PhaseofsignalaftershiftingA AmplitudeofsignalΔf Correctionoffrequency△φ CorrectionofphaseΦ PhaseafterFourierTransformΔΦ PhaseDifferencefx  Samplin…  相似文献   

8.
IntroductionandPreliminariesThroughoutthispaper,weassumethatEisarealBanachspace,E*isthedualspaceofEand〈·,·〉denotesthepairbetw...  相似文献   

9.
IntroductionIntheactivitiessuchastheaerospaceengineeringheatprotection[1,2 ],thelarge_scaleconcretepouring ,thechemicalproduction ,thepowdermetallurgyandthefiresafetyengineering[3,4],thereisonekindofnonlinearparabolicdistributedparametercontrolsystemwithmovi…  相似文献   

10.
IntroductionThroughoutthispaperweassumethatEisarealBanachspace ,E isthedualspaceofE ,DisanonemptysubsetofEandJ:E → 2 E isthenormalizeddualitymappingdefinedbyJ(x) =f∈E :〈x ,f〉 =‖x‖·‖f‖ , ‖f‖ =‖x‖ (x∈E) .  Ddfinition 1 1 LetT :D →Dbeamapping1 )Tissaidtobeasymptoticallyno…  相似文献   

11.
1 IntroductionandPreliminariesLetXbearealBanachspacewiththenorm‖·‖ ,X bethedualspaceofX ,and〈· ,·〉bethegeneralizeddualitypairingbetweenXandX .ThenormalizeddualitymappingJ:X →2 X isdefinedbyJ(x) =f∈X :〈x ,f〉=‖x‖2 =‖f‖2 ,  x∈X .  RecallthatthemodulusρX( ·)ofsmoothnesso…  相似文献   

12.
ntroductionOwingtothedevelopmentofthespacetechnologyandothertechnology,thestudyonthedynamicsofvariablemassystemsbecomesmorean...  相似文献   

13.
IntroductionInthefieldofspace,thecoupleddynamicsrelativetoliquidsloshingisoftenencountered[1].Inaspacecraftdynamicalsystem ,theliquidsloshingusuallycoupleswithrigidmotionofthesatellite ,vibrationsoftheflexibleappendixesandcontrolfunction .Ononehand ,themot…  相似文献   

14.
1 StressFunctionEquationsofPlanarElasticBodyandConditionsofDefiniteSolutions  Analyticfunctionshavemanyimportantapplicationstotheproblemsofplanarelasticmechanicsandfluidmechanics[1~ 3].Inordertomakeacarefulstudyofthevectorfieldswithsourcesandcurls,thebia…  相似文献   

15.
IntroductionAlongwiththerecentadvancesofhightechnologies,adaptivestructuresareplayingagreatimportantroleinspacedevelopment[1~...  相似文献   

16.
1 IntroductionandPreliminariesThroughoutthispaper,weassumethatEisarealBanachspace ,E isthetopologicaldualspaceofE ;〈· ,·〉isthedualpairbetweenEandE ,D(T) ,R(T) ,N(T) ,F(T)denotethedomainofT ,rangeofT ,thesetofallzeropointsofTandthesetofallfixedpointsofTrespectively…  相似文献   

17.
1 IntroductionandPreliminariesThroughoutthispaper,weassumethatXisarealBanachspaceandX isthedualspaceofX ,〈· ,·〉denotesthepairingofXandX .ThemappingJ:X → 2 X definedbyJ(x) =j∈X :〈x ,j〉=‖x‖·‖j‖ ,‖j‖ =‖x‖ ,  x∈Xiscalledthenormalizeddualitymapping .Definition 1 1 LetXbea…  相似文献   

18.
IntroductionOneofthemostimportantandinterestingproblemsinthefieldofnonlinearscienceisthedynamicsanalysisofspace_timecomplexity .Thestudyofthissubjectisdevelopingalongtwodirections.Ononehand ,thetheoryestablishedbyTemam[1,2 ]andhisco_workersoftheuniqueglob…  相似文献   

19.
IntroductionIncontinuousrandomvariableprolem ,probabilitydensityfunction (PDF)alldeterminesrandomvariable .However,itisnoteasytoobtaintheaccuratePDF .WhenthedataisnotampleandthePDFcannotbefullydetermine,ithasmorepracticalmeaningtouseafuzzyvaluefunctiontod…  相似文献   

20.
IntroductionAccordingtothedifferenceofindependentvariable,alltheproposedfiniteelementmodelscanbedividedintofiveclasses:1 )Displacementmodel[1- 4],whichassumesdisplacementiscontinuousintheentirefield ;2 )Equilibriummodel[4 ],whichassumesstressisbalanceoneachelem…  相似文献   

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