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11 个结果
  • 简介:<正>Inthispaper,wedealwiththeproblemofuniquenessofentireormeromorphicfunctionsandobtainsomeresultsthatareimprovementsoverthoseofM.Ozawa,H.Ueda,K.ShibazakiandYiHongxun.Anexampleshowsthattheresultsinthispaperaresharp.

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  • 简介:Letfbeanonconstantentirefunction;letk≥2beapositiveinteger;andletabeanonzerocomplexnumber.Iff(z)=af′(z)=a,andf′(z)=af~(k)(z)=a,theneitherf=Ce~(λz)+aorf=Ce~(λz)+a(λ-1)/λ,whereCandλarenonzeroconstantswithλ~(k-1)=1.TheproofisbasedontheWiman-Valirontheoryandthetheoryofnormalfamiliesinanessentialway.

  • 标签: 完整函数 常态族 唯一性理论 正整数
  • 简介:关于为合理功能设置的朱莉娅的连续性基于McMullen的工作,在这篇论文,我们为满足一些条件的全部功能的一个家庭讨论朱莉娅集合和它的Hausdorff尺寸的连续性。

  • 标签: 连续性 JULIA集 HAUSDORFF维数 家庭 整函数 有理函数
  • 简介:Inthispaper,weobtainsomeexistenceresultsforaclassofsingularsemilinearellipticproblemswhereweimprovesomeearlierresultsofZhijunZhang.WeshowtheexistenceofentirepositivesolutionswithoutthemonotonicconditionimposedinZhang'spaper.Themainpointofourtechniqueistochooseanapproximatingsequenceandproveitsconvergence.ThedesiredcompactnesscanbeobtainedbytheSobolevembeddingtheorems.

  • 标签: 奇异半线性椭圆问题 偏微分方程 SOBOLEV嵌入定理 最大化原则
  • 简介:ThevaluedistributionofentirefunctionsdefinedbyDirichletseriesarestudiedinthispresentarticle.ItisprovedthatentirefunctionsdefinedbyDirichletserieshavethepitsproperty,whichimprovetherelativeresultsonlacunaryTaylorseriesobtainedbyLittlewoodJ.E.andOffordA.C.

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  • 简介:<正>Letf(z)beanentirefunctionoforderλandoffinitelowerorderμ.Ifthezerosoff(z)accumulateinthevicinityofafinitenumberofrays,then(a)λisfinite;(b)foreveryarbitrarynumberk1>1,thereexistsk2>1suchthatT(k1r,f)≤k2T(r,f)forallr≥r0.Applyingtheaboveresults,weprovethatiff(z)isextremalforYang’sinequalityp=g/2,then(c)everydeficientvalueoff(z)isalsoitsasymptoticvalue;(d)everyasymptoticvalueoff(z)isalsoitsdeficientvalue;(e)λ=μ;(f)∑a≠∞δ5(a,f)≤1-k(μ).

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  • 简介:Inthispaper,wemainlyinvestigateentiresolutionsofcomplexdifferentialequationswithcoefficientsinvolvingexponentialfunctions,andobtainthedynamicalpropertiesofthesolutions,theirderivativesandprimitives.Withsomeconditionsoncoefficients,forthesolutions,theirderivativesandtheirprimitives,weconsiderthecommonlimitingdirectionsofJuliasetandtheexistenceofBakerwanderingdomain.

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  • 简介:Themainpurposeofthispaperistostudytheproblemsontheexistenceofalgebraicsolutionsforsomesecond-ordercomplexdifferentialequationswithentirealgebraicfunctionelementcoefficients.Severaltheoremsontheexistenceofsolutionsareobtained,whichperfectthesolutiontheoryoflinearcomplexdifferentialequations.

  • 标签: 复微分方程 代数解 二阶 元素 解的存在性 代数函数