简介：Itiswellknownthatcertainisotopyclassesofpseudo-AnosovmapsonaRiemannsurfaceSofnon-excludedtypecanbedefinedthroughDehntwistst(α|~)andt(β|~)alongsimpleclosedgeodesies(α|~)and(β|~)on(S|~),respectively.LetGbethecorrespondingFuchsiangroupactingonthehyperbolicplaneHsothatH/G≌(S|~).Foranypointa∈(S|~),defineS=(S|~)\{a}.Inthisarticle,theauthorgivesexplicitparabolicelementsofGfromwhichheconstructspseudo-AnosovclassesonSthatcanbeprojectedtoagivenpseudo-Anosovclasson(S|~)obtainedfromThurston'sconstruction.

简介：ThispaperpresentsthelimitingexpressionforthegencalizedinverseAT.S(2)anditscorresgondingprojectorsSincecomononimnortorsinverses,suchasandAT.S(2)etcareallgeneralizedineeAT.S(2)Infact,wegiveaunifiedlimitingformulaofcomputinesuchimporiantgeneralinedinversesanditscorrespondingproiectors,BasedonthisweestalishandimbedlingmethodfirecompotingthegeneralizedinverseAT.S(2)Theresultsextendearlierworkbyvariousauthors.

简介：ThediscreteSobolev’sinequalitiesinL_pnormareprovedforthree-dimensionalsphericalandcylindricalcoordinates,byusingdiscreteHolderinequality.propertyofthetrianglefunctionsandcomplicateddeduction.

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简介：TheauthorsconsiderthescatteringphenomenaofthedefocusingH~s-criticalNLS.ItisshownthatifasolutionofthedefocusingNLSremainsboundedinthecriticalhomogeneousSobolevnormonitsmaximalintervalofexistence,thenthesolutionisglobalandscatters.

简介：Thechaoticbehaviorofone-dimensional,2-segmentand3-segmentpiecewise-linearmapsisexaminedbyusingtheconceptofsnap-backrepellersintroducedbyMarottoandtheparametersconditionsofexistenceforsnap-backrepellerareobtained.Simulationresultsarepresentedtoshowthesnap-backrepeller,someperiodicpointsandattractingintervalcycleswithchaoticintervals.

简介：Generalizedcase-cohortdesignhasbeenprovedtobeacost-effectivewaytoenhancetheefficiencyoflargeepidemiologicalcohort.Inthisarticle,weproposeaninferenceprocedureforestimatingtheunknownparametersinCox’sproportionalhazardsmodelingeneralizedcase-cohortdesignandestablishanoptimalsamplesizeallocationtoachievethemaximumpoweratagivenbudget.Thefinitesampleperformanceoftheproposedmethodisevaluatedthroughsimulationstudies.TheproposedmethodisappliedtoarealdatasetfromtheNationalWilm’sTumorStudyGroup.

简介：Inthispaper,thefuzzyreliabilityfunctionZ=X+Yhasbeenderived.InthecaseofthatX,YsubjectstoMarshall-Olkinbivariateexponentialdistribution,assumingμ=μ1μ2.

简介：Inthispaper,wederivetwogeneralparameterizedboundariesoffinitedifferenceschemeforVee’sPDEwhichisusedtopricebothfixedandfloatingstrikeAsianoptions.Usingthesetwoboundaries,wecandealwithallkindsofsituations,especially,someextremecases,likeoverhighvolatility,verysmallvolatility,etc,underwhichtheAsianoptionisusuallymispricedinmanyexistingnumericalmethods.Numericalresultsshowthatourboundariesareprettyefficient.

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简介：WestudythestructureofBernstein’sfirstsummableoperatorsandshowthattheycon-vergeuniformlytocontinuonsfunctionsonthespecialrealorthogonalgroupSO(n)inthispaper.Inaddition,wehavealsodiscussedtheapproximationdegreetoaclassoffunctionLipα(0<α≤1)onSO(n).

简介：ForagiventriangulationΔofaregionRofinterest,letS82（Δ）:={s∈C2（R）:s|1∈P8,l∈Δ}bethespaceofallsplinesofdegree8andsmoothness2,wheretdenotesanytriangleofΔandP8thespaceofpolynomialsoftotaldegree≤8.Furthermore,letS82（Δ）:={s∈S83（Δ）:s∈C3atv,v∈Δ}beasupersplinesubspaceofS82（Δ）.WeconstruelacollectionoflocallysupportedsplinesinS82（Δ）whichcanbeusedtoachievelhefullapproximationorderofS82（Δ）anditscardinalilyislessthanthedi-mensionofsupersplinespacespaceS82（Δ）.

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简介：Inthispaperweobtainthebestapproximationconstantoffunctionf（x）(∈C2π)bytheJackson’stypeoperatorJπ3（f;x）,i.e.‖Jn,3（f,x）-f（x）‖c≤（4-6/π）ω（f,1/n）,‖Jn,3（f,x）-f（x）‖c≤（8-17/π）ω2（f,1/n）

简介：这篇论文在γ_上计算刺地图2并且证明它被2b_(2,0)代表在ASS的h_(1,2)。作者也计算b_(2,0)微分的更高的5月，从哪个它被证明那γ_3(b_0h_n-h_1b_(n-1))为2≤s

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简介：本文把点集拓扑学中的C·T·Yang定理推广到模糊拓扑学中，并且获得了一些其它新的结果。

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简介：我们构造N=从歧管的概括Calabi-Yau的2superconformal顶点代数学(SCVA)并且计算它的联系拓扑的顶点代数学的BRSTcohomology。我们证明BRSTcohomology与概括Dobeaultcohomology与一致。我们证明二拓扑的顶点代数学由A和B扭曲从N=构造了2SCVA分别地是镜子对。

简介：Inthispaperwegivetheexactorderof丨x-xk丨丨lk（x）丨foranyfixednonnegativeintegerssandt,whichisn-s,n-slnnandn1-fors≤t-2,s=t-1ands≥t,respectively.