简介：在这篇论文，我们在场一个不连续的Galerkin(DG)方法基于为解决在3-dimensional上从一个magnetohydrodynamics模型产生的一个第四顺序的卷屈方程的Nedelec有限元素空间围住Lipschitz多面体。我们证明方法为包含一个第四顺序的卷屈操作员的一个模型问题有最佳的错误估计。而且，在2种尺寸的一些数字结果被介绍验证理论结果。

简介：GyroscopicdynamicsystemcanbeintroducedtoHamiltoniansystem.BasedonanadjointsymplecticsubspaceiterationmethodofHamiltoniangyroscopicsystem,anadjointsymplecticsubspaceiterationmethodofindefiniteHamiltonianfunctiongy-roscopicsystemwasproposedtosolvetheeigenvalueproblemofindefiniteHamiltonianfunctiongyroscopicsystem.ThecharacterthattheeigenvaluesofHamiltoniangyroscopicsystemareonlypureimaginaryorzerowasused.TheeigenvaluesthatHamiltonianfunctionisnegativecanbeseparatedsothattheeigenvalueproblemofpositivedefiniteHamiltonianfunctionsystemwaspresented,andanadjointsymplecticsubspaceiterationmethodofpositivedefiniteHamiltonianfunctionsystemwasusedtosolvetheseparatedeigenvalueproblem.Therefore,theeigenvalueproblemofindefiniteHamiltonianfunctiongyroscopicsystemwassolved,andtwonumericalexamplesweregiventodemonstratethattheeigensolutionsconvergeexactly.

简介：InthispaperweprovideaprobabilisticapproachtothefollowingDirichletProblem{(∑x4(αijxj)+∑bixi+ξ)u=0,iDu=g,onD,withoutassumingthattheeigenvaluesoftheoperator∑xi(αijxj)+∑bixi+ξwithDirichletboundaryconditionsareallstrictlynegative.TheresultsofthispapergeneralizedthoseofMa.

简介：Inthispaper,weestablishanexistencecriterionoftriplepositivesolutionsofaclassofnonlinearfourth-orderthree-pointboundaryvalueproblembytheLeggettWilliamsfixedpointtheorem.Theinterestingpointisthatthenonlineartermisinvolvedwithalllow-levelderivatives.

简介：在这份报纸，为得最高分的战略优化问题的一个新信任区域算法被建议，它在每次重复基于一个新近似模型解决仅仅一二次的subproblem。途径与通常要求解决二二次的subproblems的传统的算法是不同的。而且，避免Maratos效果，nonmonotone策略被采用。分析证明在标准条件下面，算法有全球、超级的线性集中。初步的数字实验被进行显示出新方法的effiency。

简介：Accordingtotheclassicalelastictheory,thereisalwaysadiscontinuityofrotationangleontheinterfacebetweendifferentmaterials.Thisillogicresultcanbeovercomebythestraingradientplasticitytheory.Inthelightofthistheory,thereisagroupofboundarylayersolutionsnearthein-terface,whichhavemadeimportantadjustmentoftheclassicalresults.

简介：ThispaperdealswithaproblemproposedbyH.BrezisontheexistenceofpositivesolutionstotheequationΔu+u^(n+2)/(n-2)+f(x,u)=0undertheNeumannboundaryconditionDru=u^n/(n-2),wheref(x,u)isalowerorderperturbationofu^(n+2)/(n-2)atinfinity.

简介：Censiderthesolutionsofthematrixinverseproblem,whicharesymmetricpositivesemidefiniteonasubspace.Necessaryandsufficientconditionsforthesolvability,aswellasthegeneralsolutionareobtained.Thebestapproximatesolutionbytheabovesolutionsetisgiven.Thustheopenproblemin[1]issolved.

简介：=(一[潜水艇ij])R[啜n飩蒚迥蒚韩?颢髧??蛥讹迥??胦???眠?П?Ψ？

简介：Amodifiedsequentiallinearprogrammingalgorithmispresented,whosesubproblemisalwayssolvable,fortheextendedlinearcomplementarityproblem(XLCP),theglobalconvergenceofthealgorithmunderassumptionofX-rowsufficiencyorX-columnmonotonicityisproved.Asaresult,asufficientconditionforexistenceandboundednessofsolutiontotheXLCPareobtained.

简介：Thekeyideabehindculturalalgorithmistoexplicitlyacquireproblem-solvingknowledgefromtheevolvingpopulationandinreturnapplythatknowledgetoguidethesearch.Inthisarticle,culturalalgorithm-simulatedannealingisproposedtosolvetheroutingproblemofmobileagent.Theoptimalindividualisacceptedtoimprovethebeliefspace’sevolutionofculturalalgorithmsbysimulatedannealing.Thestepsizeinsearchisusedassituationalknowledgetoguidethesearchofoptimalsolutioninthepopulationspace.Becauseofthisfeature,thesearchtimeisreduced.Experimentalresultsshowthatthealgorithmproposedinthisarticlecanensurethequalityofoptimalsolutions,andalsohasbetterconvergencespeed.Theoperationefficiencyofthesystemisconsiderablyimproved.

简介：Inthispaper,weconstructandanalyseamortarfinitevolumemethodforthediscretizationforthebiharmonicprobleminR2.Thismethodisbasedonthemortar-typeAdininonconformingfiniteelementspaces.TheoptimalorderH2-seminormerrorestimatebetweentheexactsolutionandthemortarAdinifinitevolumesolutionofthebiharmonicequationisestablished.

简介：

简介：AspecializedHungarianalgorithmwasdevelopedhereforthemaximumlikelihooddataassociationproblemwithtwoimplementationversionsduetopresenceoffalsealarmsandmisseddetections.Themaximumlikelihooddataassociationproblemisformulatedasabipartiteweightedmatchingproblem.Itsdualityandtheoptimalityconditionsaregiven.TheHungarianalgorithmwithitscomputationalsteps,datastructureandcomputationalcomplexityispresented.Thetwoimplementationversions,Hungarianforest(HF)algorithmandHungariantree(HT)algorithm,andtheircombinationwiththenaveauctioninitializationarediscussed.ThecomputationalresultsshowthatHTalgorithmisslightlyfasterthanHFalgorithmandtheyarebothsuperiortotheclassicMunkresalgorithm.

简介：分级的integro微分的方程的不可思议地使不安的边界价值问题被微分不平等方法广泛地学习了。然而，带这个方法在上不似乎可能到相应非线性的向量integro微分的方程。因此，为n维的向量integro微分的方程这个问题没充分被解决。这里，我们学习这个非线性的向量问题并且获得一些结果。在这份报纸的途径是把适当integro微分的方程转变成一正规或二个一阶的方程的diagonalized系统。关键词Integro微分的方程-单个不安-边界价值问题-diagonalization方法2000苏布杰克特先生分类45J-34B-34E

简介：Thispaperdealswiththespectralapproximationofanincompressibleviscous/inviscidcou-pledmodel.AnefficientUzawaalgorithmbasedonanewvariationalformulationisproposed.ThegeneralizationtothecouplingbetweentheNavier-StokesequationsandtheEulerequationsisdiscussed.

简介：

简介：BasedonArnoldi’smethod,aversionofgeneralizedArnoldialgorithmhasbeendevel-opedforthereductionofgyroscopiceigenvalueproblems.Byutilizingtheskewsymmetryofsystemmatrix,averysimplerecurrencescheme,namedgyroscopicArnoldireductionalgorithmhasbeenob-tained,whichisevensimplerthantheLanczosalgorithmforsymmetriceigenvalueproblems.Thecomplexnumbercomputationiscompletelyavoided.Arestarttechniqueisusedtoenablethereductionalgorithmtohaveiterativecharacteristics.Ithasbeenfoundthattherestarttechniqueisnotonlyef-fectivefortheconvergenceofmultipleeigenvaluesbutitalsofurnishesthereductionalgorithmwithatechniquetocheckandcomputemissedeigenvalues.Bycombiningitwiththerestarttechnique,theal-gorithmismadepracticalforlarge-scalegyroscopiceigenvalueproblems.Numericalexamplesaregiv-entodemonstratetheeffectivenessofthemethodproposed.

简介：WeextendtheobliqueprojectionmethodgivenbyY.Saadtosolvethegeneralizedleastsquaresproblem.Thecorrespondingobliqueprojectionoperatorispresentedandtheconvergencetheoremsareproved.SomenecessaryandsufficientconditionsforcomputingthesolutionortheminimumN-normsolutionofthemin||Ax-b||M2havebeenproposedaswell.

简介：有许多实际决定问题，决定制造者的偏爱可能不一致、矛盾，在这篇论文，为订的新方法和由不和的集体偏爱的classifyingmulti属性目标被建议。这些方法基于多设置的公制的空格的理论。建议技术被用于评价公司和工程的一种竞争选择，它被几位专家在多重质的标准之上估计。