简介：将文[1,4]中定义广义正定矩阵的概念再作推广,并讨论各种不同定义下的广义正定矩阵间的包含关系,给出M-矩阵等价的四种新定义.

简介：ConstantineM.Dafermoshasdoneextensiveresearchattheinterfaceofpartialdifferentialequationsandcontinuumphysics.Heisaworldleaderinnonlinearhyperbolicconservationlaws,whereheintroducedseveralfundamentalmethodsinthesubjectincludingthemethodsofrelativeentropy,generalizedcharacteristics,andwave-fronttracking,aswellastheentropyratecriterionfortheselectionofadmissiblewavefans.Hehasalsomadefundamentalcontributionsonthemathematicaltheoryoftheequationsofthermomechanicsasitpertainsinmodelingandanalysisofmaterialswithmemory,thermoelasticity,andthermoviscoelasticity.Hisworkisdistinctlycharacterizedbyanunderstandingofthefundamentalissuesofcontinuumphysicsandtheirroleindevelopingnewtechniquesofmathematicalanalysis.

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简介：Inthispaper，theempiricallikelihoodconfidenceregionsfortheregressioncoefficientinalinearmodelareconstructedunderm-dependenterrors.Itisshownthattheblockwiseempiricallikelihoodisagoodwaytodealwithdependentsamples.

简介：我们定义m复杂物是矩阵Kn

简介：在这份报纸，当错误形成一个严格地静止的混合序列时，为在一个线性模型的回归参数的M评估者的中等偏差被获得。结果被使用学习象Hubers评估者，Lp回归评估者，最少的广场评估者和最不绝对的偏差评估者那样的M评估者的许多不同类型。

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简介：Inthispaper,MPt/C(M=La,Nd)catalystsofPEMFCweresynthesizedbymicrowaveradiationprocess.ThecrystallinityandstructureofcatalystswererespectivelyanalyzedbyXRDandnitrogenadsorptiontests.Theactivityofcatalystswasinvestigatedbyelectrochemistryexperiment.Theresultsshowedthat:1)comparedwithPt/Ccatalystpreparedbytypicalimpregnation-reductionprocess,thesizeofMPt/CcatalystparticledecreasedandtheavailablecrystalforO2reductionincreased;2)theMPt/CcatalystshadrelativelyhighBETsurfaceareas;and3)thesecrystaltransformationsoftheMPt/Ccatalystbroughthightheelectrocatalyticactivity,andasaresult,improvedthepowerofPEMFC.

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简介：ThemainparametersofHL-1MexperimentsareR=102cm,a=26cm,BT=2.8T,Ip=320kA.About0.5MWofneutralbeaminjection(NBI)powerwasusedtoheatHL-1Mplasma.Twooperationmodesofionsourcehavebeenexploredsuccessfully.

简介：Theobservedlossrateofbothparticlesandenergyfromhotconfinedtoroidalplasmasismuchhigherthantheonepredictedbyneoclassicaltransporttheory,whichdependsuponmeanplasmaparametersandCoulombcollisions.Manytypesofplasmaturbulencehavebeenproposedtoexplainanomalousplasmatransport.Thefluctuationofplasmaparametersaroundtheirmeanvaluescancausetransportthroughelectrostaticormagneticfluctuations.Thefluctuationdrivenradialparticlefluxisgivenby

简介：Wedesignafamilyof2DH~m-nonconformingfiniteelementsusingthefullP_(2m-3)degreepolynomialspace,forsolving2mthellipticpartialdifferentialequations.Theconsistenterrorisestimatedandtheoptimalorderofconvergenceisproved.Numericaltestsonthenewelementsforsolvingtri-harmonic,4-harmonic,5-harmonicand6-harmonicequationsarepresented,toverifythetheory.

简介：M积分的物理解释在损坏裂缝的压电的问题的分析被调查。在M积分和全部的电的热含量(CTEE)的变化之间的关系，即，M=2CTEE，为二维的压电的问题与一个理论推导过程被导出。M积分可以由于与损坏身体，而非对为常规易碎的固体解释了的全部的势能版本率的描述联系的pre-existingmicroc-racks的形成提供对电的热含量版本的更自然的描述，这被显示出。为损坏裂缝的压电的陶艺，M积分的数字计算被讨论。基于pseudo-tractionelectric排水量方法，M=2CTEE被数字结果也证明了。

简介：LetA=M-NbearegularsplittingofanM-matrix.WestudythespectralpropertiesoftheinerationmatrixM-1N.UnderamildassumptiononM-1N.somenecessaryandsufficentconditionssuchthatp(M-1N)=1areobtainedandthealgebraicmultiplicityandtheindexassociatedwitheigenvalue1inM-1Nareconsidered.

简介：若有最小正整数m使当m〉l时A^m=A^l成立,称A为本质（m,l）幂等矩阵.本文讨论了本质（m,l）幂等矩阵的特征.作为应用,给出了本质m对合、本质m幂等矩阵的等价刻画,讨论了最小多项式与本质（m,l）幂等矩阵的一些关系.

简介：IntroductionGuillain-Barresyndrome(GBS)isconsideredtobeanautoimmunedisorderofperipheralnervoussystem’.Thebalanceofsympatheticnervesandparasympatheticnervesisdisturbed,whichleadstocompleteparalysisi’2’3.Moslpatientsshowthetypicalsymptomsafterbeinginfe...

简介：研究服务员强制休假的M/M/1排队模型的主算子在左半复平面中的特征值,证明(λ-μ-b)-√(b+μ)2-3λ2-μb/2是该主算子的几何重数为1的特征值.

简介：Alooplessgraphonnverticesinwhichverticesareconnectedatleastbyaandatmostbybedgesiscalleda(a,b,n)-graph.A(b,b,n)-graphiscalled(b,n)-graphandisdenotedbyKbn(itisacompletegraph),itscomplementbyKbn.Anonincreasingsequencep=(d1,…,dn)ofnonnegativeintegersissaidtobe(a,b,n)graphicifitisrealizablebyan(a,b,n)-graph.Wesayasimplegraphicsequencep=(d1,…,dn)ispotentiallyK4—K2[K2-graphicifithasaarealizationcontaininganK4—K2[K2asasubgraphwhereK4isacompletegraphonfourverticesandK2[K2isasetofindependentedges.Inthispaper,wefindthesmallestdegreesumsuchthateveryn-termgraphicalsequencecontainsK4—K2[K2assubgraph.

简介：P1(G)是指这样的图：G中的所有k路作为P1(G)的顶点集，两个不同的顶点在Pk(G)中邻接当且仅当它们所对应的两条k路的并为G中的(k+1)路或k圈，那么，完美图猜想对于路图P3（G)是成立的。

简介：Itisprovedthataprobabilitymeasureisdominatedbyg-expectationεμ[·]ifandonlyifitcanbegeneratedbyGirsanovtransformationviaaprocesswhichisuniformlyboundedbyμ.