简介：Resolventmethodsarepresentedforgeneratingsystematicallyiterativenumericalalgorithmsforconstrainedproblemsinmechanics.Theabstractframeworkcorrespondstoageneralmixedfiniteelementsubdif-ferentialmodel,withdualandprimalevolutionversions,whichisshowntoapplytoproblemsoffluiddynamics,transportphenomenaandsolidmechanics,amongothers.Inthismanner,Uzawa’stypemethodsandpenalization-dualityschemes,aswellasmacro-hybridformulations,aregeneralizedtononnecessarilypotentialnanlinearmechanicalproblems.

简介：Aformulationofadifferentialequationasprojectionandfixedpointpi-Memalloivsapproximationsusinggeneralpiecnvisefunctions.Weproneexistenceanduniquenessoftheupproximatesolution*convergenceintheL2normandnodalsupercnnvergence.TheseresultsgeneralizethoseobtainedearlierbyHulmeforcontinuouspiecevjisepolynomialsandbyDelfour-Dubeaufordiscontinuouspieceuiisepolynomials.Adualityrelationshipforthetwotypesofapproximationsisalsogiven.

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简介：Aclassofnonconformingfiniteelementsisconsideredinthispaper,whichiscontinuousonlyatthenodesofthequasi-uniformmesh.Weshowthatthereex-istsanessentialestimatewhichindicatestheequivalencerelation,independentofthemeshparameter,betweentheenergiesofthenonconformingdiscreteharmonicextensionsindifferentsubdomains.Theessentialestimateisofgreatimportanceintheanalysisofthenonoverlappingdomaindecompositionmethodsappliedtosecondorderpartialdifferentialequationsdiscretizedbynonconformingfiniteele-ments.

简介：Usingrole-plays/dramaTask1Whataretheadvantagesofusingroleplays/dramainlanguageteaching?Haveyouevertriedthem?Whathaveyoufoundaboutthem?Dis-cusswithanotherteacher.OurcommentsRole-plays/dramacanprovidechildrenwiththeopportunitytouseEnglishinaquitenaturalandmeaningfulcontext.Theoutcomeofsuchactivitiesisusuallymorethanjustthepracticeofthelanguage.Theseactivitiesrequirethelearnerstoparticipatebothphysicallyandemotionally.Al-mond(2002)regardsthiskindofapproachasa

简介：Inthispaper,thesemi-discreteandfullydiscreteFourierspectralschemesfortheGinzburg-LandaucoupledwithBBMequationswithperiodicinitialvalueproblemareproposed,andtheconvergenceandstabilitiesfortheschemesareproved.

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简介：切开的修改Hermitian和skew-Hermitian(MHSS)重复方法和preconditionedMHSS(PMHSS)重复方法分别地被介绍。在纸，根据MHSS重复方法，我们在场为与non-Hermitian和复杂对称的积极definite/semi-definite解决大稀少的连续Sylvester方程的一个PMHSS重复方法矩阵。在合适的条件下面，我们证明PMHSS重复方法的集中并且讨论光谱preconditioned矩阵的性质。而且到计算花费了的还原剂，我们建立PMHSS重复方法的不精确的变体并且详细分析它的集中性质。数字结果证明PMHSS重复方法和它的不精确的变体是为连续Sylvester方程的这个类的有效、柔韧的解答者。

简介：1.IntroductionConsidertheboundaryvalueproblemofthePoissonequationwherefiisaconvexpolygonregon;r~OfftheboundaryofOandf(x,y)aknownfunctiononfi.Thegeneralizeddifferencemethodsonquadrilateralnetworksforellipticequationsareproposedin[11],’wheretheconverge...

简介：在井之间的阶层的分析在油和煤气的水库的学习是基本的。基于井木头的stratigraphic分割，在井之间的阶层的自动分析用计算机技术被认识到。我们使用匹配明智的线适合，日志字符抽取，匹配费用计算，和等等造跨井的stratigraphic关联关系并且自动地通过片拉跨井的stratigraphic对比的一张路径图的动态波形的一种技术……在分析在井之间的许多结构路径图以后，为正常差错的30个路径模式，反向的差错，不顺从，synsedimentary差错，listric差错，拧外面，等等被总结，路径图模式和关联概念被介绍。在这个方法是有效的Dagang油领域表演的申请分析。

简介：Inthispaper,wesetupageneralframeworkofparallelmatrixmullisplittingrelaxationmethodsforsolvinglargescalesystemoflinearequations.Weinvestigatetheconvergencepropertiesofthisframeworkandgiveseveralsufficientconditionsensuringittoconvergeaswellasdiverge.Atlast,weconcludeanecessaryandsufficientconditionfortheconvergenceofthisframeworkwhenthecoefficientmatrixisanL-matrix.

简介：ThediscontinuousGalerkin(DG)orlocaldiscontinuousGalerkin(LDG)methodisaspatialdiscretizationprocedureforconvection-diffusionequations,whichemploysusefulfeaturesfromhighresolutionfinitevolumeschemes,suchastheexactorapproximateRiemannsolversservingasnumericalfluxesandlimiters.TheLax-Wendrofftimediscretizationprocedureisanalternativemethodfortimediscretizationtothepopulartotalvariationdiminishing(TVD)Runge-Kuttatimediscretizations.Inthispaper,wedevelopfluxesforthemethodofDGwithLax-Wendrofftimediscretiza-tionprocedure(LWDG)basedondifferentnumericalfluxesforfinitevolumeorfinitedifferenceschemes,includingthefirst-ordermonotonefluxessuchastheLax-Friedrichsflux,Godunovflux,theEngquist-Osherfluxetc.andthesecond-orderTVDfluxes.WesystematicallyinvestigatetheperformanceoftheLWDGmethodsbasedonthesediffer-entnumericalfluxesforconvectiontermswiththeobjectiveofobtainingbetterperfor-mancebychoosingsuitablenumericalfluxes.Thedetailednumericalstudyismainlyperformedfortheone-dimensionalsystemcase,addressingtheissuesofCPUcost,ac-curacy,non-oscillatoryproperty,andresolutionofdiscontinuities.Numericaltestsarealsoperformedfortwodimensionalsystems.

简介：Evidence-basedpointselectionmethodsmeanselectingacupuncturepointsonthebasisofevidenceofclinicalefficacy.Whilemostofthisevidencecurrentlyderivesfromhistoricalliterature,whichrepresentstheaccumulatedclinicalexperienceofovertwomillennia,thereisalsoagrowingbodyofevidencebeingestablishedthroughacupunctureresearch.

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简介：SeveralfactorsareselectedtoreflectthetemporalandspatialfeaturesofseismicityinSouthwestChina.Themeasurementsofthefactorsarealltakenfromthestatisticalrelationbetweenthefactorsandactualearthquakes,andmakethefactorspossessacertainprobabilisticpredictionmeaningandthebaseformutualcontrast.Theeffectsofpredictionofpartofthefactorshavebeenevaluatedandusedtocorrectthefactors.Threesetsofseismicspatialdistributionfunctionshavebeencalculatedbyusingthreedifferentmethodsanddiscussedindetail.

简介：在这份报纸，我们在存在上解决一个问题结合线性多步方法(LMSM)的symplecticity，否定结果被获得。[从作者抽象]

简介：Thestateequationsofstochasticcontrolproblems,whicharecontrolledstochasticdifferentialequations,areproposedtobediscretizedbytheweakmidpointruleandpredictor-correctormethodsfortheMarkovchainapproximationapproach.Localconsistencyofthemethodsareproved.NumericaltestsonasimplifiedMerton'sportfoliomodelshowbettersimulationtofeedbackcontrolrulesbythesetwomethods,ascomparedwiththeweakEuler-MaruyamadiscretisationusedbyKrawczyk.ThissuggestsanewapproachofimprovingaccuracyofapproximatingMarkovchainsforstochasticcontrolproblems.

简介：明确的问题在这篇论文被论述的为对称、积极的半的一般反复的方法上的集中分析。首先，提出了被精制为为反复的方法的精力标准集中的必要、足够的条件。为条件的一些解说性的例子也被提供。为明确的系统被获得仅仅依靠指导我们为一般连续潜水艇空间修正方法获得集中率身份的纯矩阵操作的为半的Gauss-Seidel方法的锋利的集中率身份。为连续潜水艇空间修正方法的集中率身份在本地修正计划拥有的新条件下面被获得本地精力标准集中。集中率估计然后以处于条件出现的准确潜水艇空格解答者和参数被导出。一致集中多，为一个模型问题的格子方法被集中率身份证明。工作能是regraded它为semidfinite问题的重复方法的集中上的统一并且简化的分析[8,9]。

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简介：这篇论文描述一些重复方法的几何必需品(例如牛顿重复，正割线方法，等等)为解决非线性的方程；预付一些灵活的重复的几何方法；有效。