简介：Inordertostudytheapproximationbyreciprocalsofpolynomialswithrealcoefficients,onealwaysassumesthattheapproximatedfunctionhasafixedsignonthegiveninterval.Sometimes,theapproximatedfunctionispermittedtohavefinitesignchanges,suchasl(l≥1)times.ZhouSongpinghasstudiedthecasel=1andl≥2inLpspacesinorderofpriority.Inthispaper,westudiedthecasel≥2inOrliczspacesbyusingthefunctionextend,modifiedJacksonkernel,Hardy-Littlewoodmaximalfunction,Cauchy-Schwarzinequality,andobtainedtheJacksontypeestimation.

简介：AsquarerootfunctionalequationonpositiveconesofC*-algebrasisintroducedanditssolutionandHyers-Ulam-Rassiasstabilityareinvestigated.

简介：在LHT模型的过程tch，e+eb，e+ebh和ppb上的风味变化效果在这份报纸被调查。我们从T同等值奇怪的镜子费米子和计量器波色子计算一个环水平贡献。结果证明最高的夸克在LHT模型的稀罕腐烂tch能显著地在SM相对那被提高。在在LHT模型的线性colliders的b生产能非常提高SM生气的节并且在在实验允许的一些参数空格到达0.1fb。但是重计量器波色子和镜子费米子环有小贡献到过程ppb和e+ebh。e+eb上的LHT效果可能因此在未来被检测线性colliders，当为e+e被看太小时，bh和ppb在未来处理线性colliders和LHC。

简介：Inthisarticle,theexistenceanduniquenessofpositivesolutionforaclassofnonlinearfractionaldifferentialequationsisprovedbyconstructingtheupperandlowercontrolfunctionsofthenonlineartermwithoutanymonotonerequirement.OurmainmethodtotheproblemisthemethodofupperandlowersolutionsandSchauderfixedpointtheorem.Finally,wegiveanexampletoilluminateourresults.

简介：TheexistenceandmultiplicityofpositivesolutionsarestudiedforaclassofquasilinearellipticequationsinvolvingSobolevcriticalexponentswithmixedDirichlet-Neumannboundaryconditionsbythevariationalmethodsandsomeanalyticaltechniques.

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