简介:REPRESENTATIONSANDENUMERATIONSOFSEMIORDERSWITHHEIGHTONEWuShiquan(巫世权)(InstituteofAppliedMathematics,ChineseAcademyofSciencesP...
简介:<正>Inthispaper.wegivecharacterizationsofNashinequalitiesforbirth-deathprocessanddiffusionprocessontheline.Asaby-product.weprovethatfortheseprocesses.transienceimpliesthatthesemigroupsP(t)decayas‖P(t)‖1--x≤Ct-1.SufficientconditionsforgeneralMsrkovchainsarealsoobtained.
简介:Inthispaper,weanalyzethefuzzyreliabilityofparalleling-seriessystem,focusingonthesituationoftheearlyfailuremode.TheearlyfailuremodeoffuzzyreliabilitymainlyobeystheWeibulldistribution.Basedonthis,weobtainthedistributionfunction,densityfunction,failurefunction,reliabilityfunctionandtheformulaofthemeantimetofailure.Fortheparalleling-seriessystemcomposedofmultiplecomponents,C1j,C2j,Cnj…,Cnj(j=1,2,…,K),especiallywhenη=1,mij=m,i=1,…n,j=1,2,…,k,wealsoobtainthecorrespondingformulas.Finally,weciteanexampletoverifytheformulaanddeepentheunderstanding.
简介:Inthispaper,weanalyzethefuzzyreliabilityofparallelingsystem,focusingonthesituationoftheearlyfailuremode.TheearlyfailuremodeoffuzzyreliabilitymainlyobeystheWeibulldistribution.Basedonthis,weobtainthedistributionfunction,densityfunction,failurefunction,reliabilityfunctionandtheformulaofthemeantimetofailure.Fortheparallelingsystemcomposedofmultiplecomponents,C1,C2,???,Cn,especiallywhenη=1,wealsoobtainthecorrespondingformulas.Finally,weciteanexampletoverifytheformulaanddeepentheunderstanding.
简介:Thispaperpresentsaclassofhybridone-stepmethodsthatareobtainedbyusingCramer’sruleandrationalapproximationstofunctionexp(q).Thealgorithmsfallintothecatalogueofimplicitformula,whichinvolvessthorderderivativeands+1freeparameters.Theorderofthealgorithmssatisfiess+1≤p≤2s+2.Thestabilityofthemethodsisalsostudied,necessaryandsufficientconditionsforA-stabilityandL-stabilityaregiven.Inaddition,someexamplesarealsogiventodemonstratethemethodpresented.
简介:在这份报纸,我们证明在范畴之间有一个自然等价?与给定的周期的模块的过滤的复杂性1的Koszul模块的1(x)作为一个m鈥揹imensional向量空格的外面的代数学螞=鈭的因素模块,并且有限鈥揹imensional的范畴局部地m鈥?的多项式代数学的nilpotent模块1个变量。关键词外面的代数学-Koszul模块-复杂性先生(2000)题目分类16G70-在他们的第60生日奉献给教授Roberto市场铆nez鈥揤illa和RaymondoBautista的16D90这研究被NSFC#10371036并且由湖南的省的教育部的关键工程#2A024部分地支持
简介:ThisarticleconcernstheconstructionofapproximatesolutionsforageneralstochasticintegrodifferentialequationwhichisnotexplicitlysolvableandwhosecoeffcientsfunctionallydependonLebesgueintegralsandstochasticintegralswithrespecttomartingales.Theapproximateequationsarelinearordinarystochasticdifferentialequations,thesolutionsofwhicharedefinedonsub-intervalsofanarbitrarypartitionofthetimeintervalandconnectedatsuccessivedivisionpoints.TheclosenessoftheinitialandapproximatesolutionsismeasuredintheLp-thnorm,uniformlyonthetimeinterval.Theconvergencewithprobabilityoneisalsogiven.
简介:AnanalysisonthepropertyofSelf-ScalingRankOneUpdate(SSR1)isgiven.Inviewofit,weexplorewhethertheSSR1updatewithoutusingexactlinesearchpossessesthefiniteterminationpropertywhenitisappliedtominimizeapositivedefinitequadraticobjectivefunction.
简介:Weintroducethecategoryoft-foldmoduleswhichisafullsubcategoryofgradedmodulesoveragradedalgebra.Weshowthatthissubcategoryandhencethesubcategoryoft-Koszulmodulesarebothclosedunderextensionsandcokernelsofmonomorphisms.Westudytheone-pointextensionalgebras,andanecessaryandsufficientconditionforsuchanalgebratobet-Koszulisgiven.Wealsoconsidertheconditionssuchthatthecategoryoft-Koszulmodulesandthecategoryofquadraticmodulescoincide.
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:让S是包含一刺x的Riemann表面。让是S上的简单关上的geodesics的收集,并且让表示在S上在对身份同位素的S上印射班的集合{x}。关于曲线c由tc表示积极Dehn扭曲。在这份报纸,作者学习形式的产品(tbmtn)fk一,b和f。如果,看见那是容易的=b或一,b是S上的刺穿x的柱体的边界部件,那么,一个人可以发现一个元素f以便顺序(tbmtn一)fk无穷地包含Dehn扭曲的许多力量。作者证明converse陈述仍然保持真,也就是说如果顺序(tbmtn)fk无穷地包含Dehn扭曲的许多力量,那么一,b一定是S上的刺穿x的柱体的边界部件,f是旋转地图tb的力量1t一。
简介:LetGbeaPolyafrequencydensityandGitsperiodization.Wegettheexactvalueofupperapproxi-mationofS1(G),whichisaconvolutionclasswithkernelG.bycardinalsplinescprrespndingtoG.SimilarresulthasbeenobtainedforperiodicconvolutionclasswithkernelGaswell.