简介:AsChinaexpandsitsofficialdevelopmentassistance(ODA)inSoutheastAsia,isChineseaidbeginningtoemulateinternationalnormsandpracticesorinsteadestablishingitsowndistinctapproachtodevelopmentassistance?ThisessayarguesthatChina’ssocializationintointernationalnormsvarieswiththethicknessoftheinstitutionalenvironment.InCambodiaandLaos,China’saidprogramshowssignsofalignmentwithinternationalaidpractices.Attheregionallevel,however,Chinaisbeginningtoactmorelikeanorm-maker.Throughexpandingitsfinancialsupportforselectregionalinitiatives,Beijingisbolsteringitsabilitytoshapethenormsandpracticesofregionaldevelopmentalinstitutions.China’srisingODAinSoutheastAsiaposesapotentialchallengetoAustralia’sinfluenceintheregion,butalsoprovidesopportunitiesforgreaterdiplomaticengagementandcooperationinsupportofregionaldevelopment.
简介:ApeaknormisdefinedforLpspacesofE-valuedBochnerintegrablefunctions,whereEisaBanachspace,andbestapproximationsfromasuntoelementsofthespacearecharacterized.Applicationsaregiventosomefamiliesofsimultaneousbestapproximationproblems.
简介:让Sq-1,q≥2,联合起来的范围的表面在欧几里德几何学的spaceRq,f(x)∈Lp(Sq-1),f(x)≥0,f吗?0,1≤p≤+∞。然后,它在现在的纸被证明有顺序≤N和经常的C>的球形的泛音PN(x)0以便‖f-1/P_N‖L_p≤Cω(f,N~(-1))Lp,在哪儿ω(f,吗δ)Lp=sup_(0
简介:TheauthorsinvestigatetheconditionsforthebotmdednessofBergmantypeoperatorsPa,tinmixednormspaceLp,q(μ)ontheunitballofC^n(n≥1),andobtainasufficientconditionandanecessaryconditionforgeneralnormalfunctionμ,andasufficientandnecessaryconditionforμ(r)=(1-r^2)^αlog^β(2(1-r)^-1)(α>0,β≥0),ThisgeneralizestheresultofForelli-Rudin[3]onBergmanoperatorinBergmanspace.Asapplications,amorenaturalmethodisgiventocomputethedualityofthemixednormspace,solvetheGleason'sproblemformixednormspaceandobtainthecharacterizationofmixednormspaceintermsofpartialderivatives.Moreover,itisprovedthatf∈L^(0)∞,q(μ)forholomorphicfunctionf,1≤q≤∞.
简介:Letf(x)∈C[-1,1],pn*(x)bethebestapproximationpolynomialofdegreentof(x).G.Iorentzconjecturedthatifforalln,p2n*(x)=p2n+1*(x),thenfiseven;andifp2n+1*(x)=p2n+2*(x),po*(z)=0,thenfisodd.Inthispaper,itisprovedthat,undertheL1-norm,theLorentzconjectureisvalidconditionally,i.e.if(i)(1-x2)f(x)canbeextendedtoanabsolutelyconvergentTehebyshevsories;(ii)foreveryn,f(x)-p2n+1*(x)hasexactly2n+2zeros(or,inthearcondsituation,f(x)-p2n+2*(x)hasexaetly2n+3zeros),thenLorentzconjectureisvalid.
简介:InthispaperwediscussthegeneralizationsoftheKantorovichinequalityandobtainsomegeneralizedKantorovichinequalitiesinthesenseofmatrixnorm.Wefurtherillustratehowtousetheseinequalitiestodeterminethelowerboundofrelativeefficiencyoftheparameterestimateinlinearmodel.
简介:在这份报纸,我们估计了伯恩斯坦2l广告justed插值多项式操作员的标准,并且证明评价是锋利的。
简介:InthispaperweestablisharesultaboutuniformlyequivalentnormsandtheconvergenceofbestapproximantpairsontheunitaryballforafamilyofweightedLuxemburgnormswithnormalizedweightfunctionsdependingonε,whenε→0.ItisintroducedageneralconceptofPadeapproximantandwestudyitsrelationwiththebestlocalquasi-rationalapproximant.Wecharacterizethelimitoftheerrorforpolynomialapproximation.WealsoobtainanewconditionoveraweightfunctioninordertoobtaininequalitiesinLpnorm,whichplayanimportantroleinproblemsofweightedbestlocalLpapproximationinseveralvariables.
简介:Westudythenormretrievalbyprojectionsonaninfinite-dimensionalHilbertspaceH.Let{e_i}_(i∈I)beanorthonormalbasisinHandW_i={e_i}~⊥foralli∈I.Weshowthat{W_i}_(i∈I)doesnormretrievalifandonlyifIisaninfinitesubsetofN.Wealsogivesomepropertiesofnormretrievalbyprojections.
简介:Radialfunctionshavebecomeausefultoolinnumericalmathematics.Onthespheretheyhavetobeidentifiedwiththezonalfunctions.Weinvestigatezonalpolynomialswithmassconcentrationatthepole,inthesenseoftheirL1-normisattainingtheminimumvalue.Suchpolynomialssatisfyacomplicatedsystemofnonlineare-quations(algebraicifthespacedimensionisodd,only)andalsoasingulardifferentialequationofthirdorder.Theexactorderofdecayoftheminimumvaluewithrespecttothepolynomialdegreeisdetermined.Byourresultswecanprovethatsomenodalsystemsonthesphere,whicharedefinedbyaminimum-property,areprovidingfundamentalmatriceswhicharediagonal-dominantorboundedwithrespecttothe∞-norm,atleast,asthepolynomialdegreetendstoinfinity.
简介:ConsideringaclassofoperatorswhichincludefractionalintegralsrelatedtooperatorswithGaussiankernelbounds,thefractionalintegraloperatorswithroughkernelsandfractionalmaximaloperatorswithroughkernelsasspecialcases,weprovethatiftheseoperatorsareboundedonweightedLebesguespacesandsatisfysomelocalpointwisecontrol,thentheseoperatorsandthecommutatorsoftheseoperatorswithaBMOfunctionsarealsoboundedongeneralizedweightedMorreyspaces.
简介:这篇文章的目的是为不可压缩的magnetohydrodynamic方程开发并且分析最少平方的近似。最少平方的有限元素方法的主要优点是它不受到所谓的Ladyzhenskaya相当於Mr或Sir的称谓?ka-Brezzi(LBB)状况。作者采用包含与在H-1的内部产品有关的一个分离内部产品的最少平方的functionals(蠅)。
简介:Thetheta(t)-typeoscillatorysingularintegraloperatorshasbeendiscussed.Withthenon-negativelocallyintegrableweightedfunction,theweightednorminequalityoftheta(t)-typeoscillatorysingularintegraloperatorsisproved,andtheweightedfunctionhasreplacedbyactionofHardy-Littlewoodmaximaloperatorsseveraltimes.