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219 个结果
  • 简介:Inthisarticle,wemainlydiscusstheasymptoticbehaviorformulti-dimensionalcontinuous-timerandomwalkinrandomenvironmentwithholdingtimes.Byconstructingarenewalstructureandusingthepoint'environmentviewedfromtheparticle',underGeneralKalikow'sCondition,weshowthelawoflargenumbers(LLN)andcentrallimittheorem(CLT)fortheescapespeedofrandomwalk.

  • 标签: 时间随机环境 随机游动 渐近性质 保温 中心极限定理 渐近行为
  • 简介:Inthispaper,westudystronglawsoflargenumbersforrandomwalksinrandomsceneries.Somemildsufficientconditionsforthevalidityofstronglawsoflargenumbersareobtained.

  • 标签: 随机性质 数学 研究 景物 级数
  • 简介:Aresultregardinginvariantrandomapproximationisproved.

  • 标签: 气田 异声
  • 简介:InthepresentpaperweintroducearandomiterationschemeforthreerandomoperatorsdefinedonaclosedandconvexsubsetofauniformlyconvexBanachspaceandproveitsconvergencetoacommonfixedpointofthreerandomoperators.Theresultisalsoanextensionofaknowntheoreminthecorrespondingnon-randomcase.

  • 标签: 巴拿赫空间 线形算子 收敛 不动点 随机迭代
  • 简介:Overthepasttwodecades,wheneveracopyofJournalofGeologicalSocietyoflndiahasreachedmyhand,thefirstthingIhavedoneisreadtheeditorial.Nomatterwhattheirtopicsare,theseessaysareneverdullbutlivelyandprecisepresentationsofvariousearthscienceissuesfacingthedevelopingcountriesandoftentimestheworldaswell.ComingfromthepenofDr.B.P.Radhakrishna,

  • 标签: 地图 印度地理 科学普及 学术交流
  • 简介:Let(Ω,A,P)beaprobabilityspace,X(t,ω)arandomfunctioncontinuousinprobabilityfort∈[0,∞)or(-∞,+∞)(ω∈Ω),andF(t)apositivefunctioncontinuousfort∈[0,+∞)or(-∞,+∞).IfX(t,ω)andF(t)verifycertainconditions,thenthereexistaasequence{Qn(t,ω)}ofrandompolynomialssuchthatwehavealmostsurely:fort[0,+∞)or(-∞,+∞),lim↑n→+∞|X(t,ω)-Qn(t,ω)|/F(t)=0.

  • 标签: 加权逼近 随机函数 概率空间 WEIERSTRASS逼近定理
  • 简介:AttheinvitationofDistrict5170,RotaryClubofCaliforniaofUSA,a5memberCAFIUdelegationheadedbyMr.TanRonggen,CouncilMember,visit...

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  • 简介:让Gn,d是有n顶点的一张随机的d常规的图,在此d=o(n)。给一张固定的图H,YH在Gn,d。在这篇论文,作者决定事件的阀值“YH>0',并且也在阀值间隔内获得劝诱的潜水艇图计数。

  • 标签: 子图 泊松分布 随机规则图 平衡性 阈值
  • 简介:Inthispaper,weintroducetheapplicationofrandommatricesinmathematicalphysicsincludingRiemann-Hilbertproblem,nuclearphysics,bigdata,imageprocessing,compressedsensingandsoon.WestartwiththeRiemannHilbertproblemandstatetherelationbetweentheprobabilitydistributionofnontrivialzerosandtheeigenvaluesoftherandommatrices.Throughtherandommatricestheory,wederivethedistributionofNeutronwidthandprobabilitydensitybetweenenergylevels.Inaddition,theapplicationofrandommatricesinquantumchromodynamicsandtwodimensionalEinsteingravityequationsisalsopresentinthispaper.

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  • 简介:本文首次给出了非线性随机效应模型参数估计弱相合性的必要条件,并证明了在一定正则条件下估计的强相合性和渐近正态性,推广了BreslowandCalyton(1993),LeandNelder(1996)的结果.

  • 标签: 固定效应 随机效应 边缘似然
  • 简介:Thispaperreportsacoherentrandommicrocavitylaserthatconsistsofadisorderedcladding(scattering)layerandalight-amplificationcorefilledwithdyesolution.Coldcavityanalysisindicatesthattherandomresonancemodessupportedbytheproposedcavitycanbeeffectivelyexcited.Withintroducingthegainmaterial,randomlasingbyspecificmodesisobservedtoshowtypicalfeaturesofcoherentrandomlasers,suchasspatiallyincoherentemissionofrandommodes.Byinsertingametalnanoparticleintothegainregion,emissionwavelength/intensityoftherandomlaserscanbeconsiderablytunedbychangingthepositionoftheinsertednanoparticle,openingupnewavenuesforcontrollingoutputofrandomlasersandsensingapplications(e.g.,smallparticleidentification,location,etc.).

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  • 简介:让N=(G,c)一个随机的电的网络被在随机的图G\mathbbG\mathbb为每个边分配某个抵抗获得{G}(n,p)并且边界顶点上的潜力。在这份报纸,我们证明与高概率,G的所有顶点的潜在的分发离一个常数很靠近。

  • 标签: 随机图 网络 电器 电位分布 顶点 概率
  • 简介:Inthispaperweshowthcmethodofenergyinpartwithwhichwecangetthemodelofrandomwave,andpredicttherollmotionofunstabilizedshipandstabilizedshipusingthewavemodel.Thecontrolparametersoffinstabilizeraredeterminedaccordingtotheperformanceindex.Thesimulationofthesystemisalsomadeinthispaper.Thecomparisonofthesimulationwithrealshipindicatesthatthemethodcanbeusedinthepredictionofrollmotionofastabilizedshipinrandomwave.

  • 标签: wave model energy in part ROLL
  • 简介:Thedualrandommodelsaboutthelifeinsuranceandsocialpensioninsurancehavereceivedconsiderableattentionintherecentarticlesonactuarialtheoryandapplications.Thispaperdiscussesageneralkindofincreasingannuitybasedonitsforceofinterestaccumulationfunctionasageneralrandomprocess.Thedualrandommodelofthepresentvalueofthebenefitsoftheincreasingannuityhasbeenset,andtheirmomentshavebeencalculatedundercertainconditions.

  • 标签: 二重随机模型 社会养老金 保险精算 统计分析
  • 简介:ThispapercontainstheKolmogorov-Prokhorovexponentialinequalitiesfordependentrandomvariables,i.e.,forφ-mixing,ρ--mixingandα--mixing.Asanapplication,thelawofiteratedlogarithmisestablishedforstationaryα--mixingsequenceunderanearlybestassumption.

  • 标签: KOLMOGOROV stationary mixing ASSUMPTION EXPONENTIAL proof
  • 简介:在这篇文章,Dirichlet系列的唯一定理被证明。然后在权利的随机的Dirichlet系列半飞机被学习,并且有限顺序的随机的Dirichlet系列几乎肯定有的结果(a.s)没有缺乏的功能被证明。给词调音:随机的系列;Dirichlet系列;缺乏的多项式;价值分发

  • 标签: 随机级数 狄利克雷级数 亏函数 数值分布
  • 简介:让{X,Xk:k1}是扩大否定地依赖的随机的一个序列有普通分发F令人满意的前的变量>0。让是nonnegative珍视整数的随机的变量,独立于{X,Xk:k1}。在这份报纸,作者为随机的和$S_\tau=\sum\limits_获得必要、足够的条件{n=1}^\tau{X_n}$当随机的数字比被加数有一条更重的尾巴时,有一条一致地变化的尾巴,即,$\frac{{P(X>x)}}{{P(\tau>x)}}\to0$作为x。

  • 标签: 随机数 负相关 尾概率 相依随机变量 充分必要条件 分布函数
  • 简介:Inthispapertheauthorsgeneralizetheclassicrandombipartitegraphmodel,anddefineamodeloftherandombipartitemultigraphsasfollows:letm=m(n)beapositiveinteger-valuedfunctiononnandζ(n,m;{pk})theprobabilityspaceconsistingofallthelabeledbipartitemultigraphswithtwovertexsetsA={a_1,a_2,...,a_n}andB={b_1,b_2,...,b_m},inwhichthenumberst_(ai),b_joftheedgesbetweenanytwoverticesa_i∈Aandb_j∈BareidenticallydistributedindependentrandomvariableswithdistributionP{t_(ai),b_j=k}=pk,k=0,1,2,...,wherepk≥0and∞Σk=0pk=1.TheyobtainthatX_(c,d,A),thenumberofverticesinAwithdegreebetweencanddofG_(n,m)∈ζ(n,m;{pk})hasasymptoticallyPoissondistribution,andanswerthefollowingtwoquestionsaboutthespaceζ(n,m;{pk})with{pk}havinggeometricdistribution,binomialdistributionandPoissondistribution,respectively.Underwhichconditionfor{pk}cantherebeafunctionD(n)suchthatalmosteveryrandommultigraphG_(n,m)∈ζ(n,m;{pk})hasmaximumdegreeD(n)inA?underwhichconditionfor{pk}hasalmosteverymultigraphG(n,m)∈ζ(n,m;{pk})auniquevertexofmaximumdegreeinA?

  • 标签: 独立随机变量 多重图 最小度 概率空间 泊松分布 几何分布