简介：

简介：LetAbeann×nrealsymmetricmatrix.Aiscalledcompletelypositive(denoteA∈CP_n)ifA=B’Bforsomem×nnonnegativematrixBwheremisanintegeranddenotes

简介：ThispaperstartswiththediscussionoftheprincipleofReduced-Rank(RR)Space-TimeAdaptiveProcessing(STAP).Itisfollowedbyadedicationoftheupperboundperformanceofalleigen-basedRRmethodsprovidedbyCrossSpectralMethod(CSM)undertheconditionofagivenprocessorrankandanidenticalsecondarysamplesize.AperformancecomparisonbetweentwoRRSTAPprocessorswithprefixedstructureandCSMisperformedbythemeansofsimulations.Itisshownthattheperformanceoftimepre-filteringfollowedbyjointlylocalizedSTAPstructure(i.e.3DT-SAP)isveryclosetotheupperboundandtherebyitisaneffectiveRRapproach.

简介：Thelongcontroversyovertheterm‘Quaternary'asachronostratigraphicunitmaybereachinganapotheosis,judgingfromrecentpapers(PillansandNaish,2004;Gibbardetal.,2005;andreferencestherein).Thedebateisnolongercenteredonwhetherthereshouldbeaplaceinthegeologicaltimescaleforaunittermed‘Quaternary'-despiteitsdubiouspast,itcannotbedeniedthatalargebodyofearth-historicalresearchisstronglyidentifiedwiththisterm.ThechallengenowconcernsanappropriaterankanddefinitionofQuaternarywithregardtootherchronostratigraphicunits.Severaloptionshavebeenproposed(PillansandNaish,2004),andGibbardetal.(2005)encourageadebateonthesebeforedecisionisreached.Inthisbriefnote,wedescribeanarrangementnotpreviouslyconsideredthatseemsadvantageous.Itisinstructive,however,tofirstreviewthePleistoceneSeriesandNeogeneSystem,thetwounitsthataredirectlyaffectedbyintroductionoftheQuaternaryintothechronostratigraphichierarchy.

简介：AnexcellentintroductiontothetopicofposetmatroidsisduetoBarnabei,NicolettiandPezzoli.Inthispaper,weinvestigatetherankaxiomsforposetmatroids;therebywecancharacterizeposetmatroidsina“global”versionanda“pseudo-global”version.Somecorrespondingpropertiesofcombinatorialschemesarealsoobtained.

简介：Abstract,Inthispaper,anecessaryconditionforamaximaltriangularalgebratobeclosedisgiven,Anecessaryandsufficientconditionforamaxima]triangularalgebratohestronglyreducibleisobtained,

简介：在这篇论文，我们在场为有限p组的等级的锋利的界限以它的coexponent。至于有p的有限p组奇怪，我们也给正常等级等于它的等级的一个足够的为条件。

简介：在这份报纸，我们显示出怎么为图象结束在常规或在常规附近的质地利用低等级、稀少的结构。我们的方法为随机、连续的贪污基于统一明确的表达。除了质地的低等级性质，算法也使用自然图象的稀少的假设：因为自然图象是piecewise，变光滑，它在某些转变领域是稀少的(例如Fourier或小浪变换)。我们联合低等级并且质地的稀少性质在建议算法一起想象。我们的算法能自动地并且正确地基于凸的优化修理一块贿赂质地的全球结构，甚至没有要完成的区域的精确信息。这个算法集成质地校正并且修理进一个优化问题。通过广泛的模拟，我们证明我们的方法能完成并且修理错误比存在低等级的矩阵恢复方法更好与随机、连续的支持贿赂的质地。我们的方法证明超越本地补丁的重要优点在处理大贪污，不一致的质地，和大观点变丑基于质地合成技术。

简介：AmongMongolianandTibetanhigh-rankingBuddhistmonks,theKhutukhtuissecondonlytothatoftheDalaiandthePanchen.Therehave,however,beenvariousinterpretationsofthewordkhutukhtu,itslinguisticorigin,andconnotations.Inthisessay,therefore,IexpoundonthepreliminarytextualresearchIhavemadeintoquestionsregardingtheoriginoftheword"khutukhtu,"itscourseofevolution,andspecificmeaningwhen"Khutukhtu"becamethepostandranktitleforcertainMongolianandTibetanhigh-rankingBuddhistmonks.

简介：AnanalysisonthepropertyofSelf-ScalingRankOneUpdate(SSR1)isgiven.Inviewofit,weexplorewhethertheSSR1updatewithoutusingexactlinesearchpossessesthefiniteterminationpropertywhenitisappliedtominimizeapositivedefinitequadraticobjectivefunction.

简介：AccordingtostatisticsconductedbytheEnvironmentBureauofT.A.R，Tibethasestablished7differentconservationareasatnationallevel,8atprovinciallevel,and23atsub-provinciallevel.Thetotalconservationareareachesto407,000sqkm,ThisnumberaccountsforonethirdoftA.R,andranksnumberoneinChina.

简介：Let∑,Гbetwon-by-ndiagonalmatriceswithσi,γiastheirdiagonals.Fortheinverseeigenvalueproblem:lookfory∈RnsuchthatГ+yyTissimilarto∑,weprovethatualsothesufficientconditionforthesolvabilityofthisinverseproblem.Itssolution(set)isgivenexplicitly.Insomecase,theproblemisunstable.Butweprovethatthesumsofthesquareofsomecontigiouscomponentskeepstable,i.e.,smallsumkeepssmall,largesumhasasmallrelativeperturbation,seeTheorem3.

简介：Nonlinearrank-onemodificationofthesymmetriceigenvalueproblemarisesfromeigen-vibrationsofmechanicalstructureswithelasticallyattachedloadsandcalculationofthepropagationmodesinopticalfiber.Inthispaper,wefirststudytheexistenceanduniquenessofeigenvalues,andtheninvestigatethreenumericalalgorithms,namelyPicarditeration,nonlinearRayleighquotientiterationandsuccessivelinearapproximationmethod(SLAM).TheglobalconvergenceoftheSLAMisprovenundersomemildassumptions.NumericalexamplesillustratethattheSLAMisthemostrobustmethod.

简介：rank-n的一个家庭(n=5,6,7,8)three-qubit混合了状态被构造。为为所有这些状态的三混乱、最佳的分解的明确的表情被给。为这些状态的CKW关系也被讨论。

简介：在这篇论文，我们考虑在双线性的模型减小产生的一个概括Lyapunov方程的低等级近似答案。由使用变化原则，低等级近似答案问题被转变成一个非强迫的优化问题，然后我们使用非线性与准确的线搜索结合坡度方法解决相等的非强迫的优化问题。最后，一些数字例子被举说明建议方法的有效性。[从作者抽象]

简介：最近，矩阵因式分解模型实质上在处理大规模等级最小化问题吸引增加的注意，它是一个nonconvex最小化问题。明确地，它是一个二次的最少的广场问题并且因而一个四次的多项式优化问题。在这份报纸，我们介绍SNIG的一个概念(“秒顺序必要optimality暗示全球optimality”)代表性质的状况矩阵因式分解模型的静止的点必须是的任何秒顺序全球minimizer。SNIG条件抓住在下面被介绍的一些情形。而且，当SNIG条件可以失败时，我们由一个例子说明。

简介：TwoestimatesusefulinapplicationsareprovedfortheFouriertransforminthespaceL2(X),whereXasymmetricspace,asappliedtosomeclassesoffunctionscharacterizedbyageneralizedmodulusofcontinuity.

简介：Inthispaper,rankfactorizationsandfactorleftprimefactorizationsarestudied.Theauthorsprovethatanypolynomialmatrixwithfullrowrankhasfactorleftprimefactorizations.Andforaclassofpolynomialmatrices,theauthorsgiveanalgorithmtodecidewhethertheyhaverankfactorizationsorfactorleftprimefactorizationsandcomputethesefactorizationsiftheyexist.

简介：我们知道，Google对网页评级的时候．有个PR值．而搜狗搜索引擎前一段时间也引进了PR的概念．不过名字叫SogouRank。下面我们就来看看搜狗搜索引擎的一些特性．当然．不止是针对搜狗的．这些特性同样适用于其它搜索引擎。

简介：Offshorestructureswillencounterseriousenvironmentalload,soitisimportanttostudythestructuralsystemreliabilityandtoevaluatethestructuralcomponentsafetyrank.Inthispaper,thebracnch-and-boundmethodisadoptedtosearchthemainfailurepath,andtheDitlevsenboundmethodisusedtocalculatethesystemfailureprobability.Thestructureisthenassessedbythefuzzycomprehensiveassessmentmethod,whichevaluatesthestructuralcomponentsafetyrank.Theultimateequationofthetu-bularcross-sectionisanalyzedonthebasisofultimatestregnthanalysis.Theinfluenceofeffectcoefficientsonthestructuralsystemfailureprobabilityisinvestigated,andbasicresultsareobtained.Ageneralprogramforspatialframestructuresbymeansoftheabovemethodisdeveloped,andverifiedbythenumericalexamples.