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54 个结果
  • 简介:在这份报纸,我们基于范围的楔学习comultiplications的homotopy逆和co-H-spaces的代数学的环的性质。我们也调查一个方法由使用一个组行动从旧的构造新comultiplications。我们首先对有的代数学的环感兴趣反向,力量联合并且为某comultiplications的Moufang性质。

  • 标签: CO-H-空间 代数 c循环
  • 简介:SupposethatDisadivisionringinwhichthereisdefinedananti-automorphismα→(?)isinvolutorial,RisaleftvectorspaceoverD.Usingthegivenanti-automorphismα→(?),itiseasytoturnRintoarightvectorspaceoverDbysetingx(?)=ax.Bilinearformg(x,y)connectingtheleftvectorspaceRandtherightvectorspaceRisaHermitianscalar.

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  • 简介:本文中,给出了非奇异H-矩阵的新判定条件,改进了近期的相关结果,并用数值例子说明了所得结果判定范围的更加广泛性。

  • 标签: 非奇异H-矩阵 不可约 非零元素链
  • 简介:Wedesignafamilyof2DH~m-nonconformingfiniteelementsusingthefullP_(2m-3)degreepolynomialspace,forsolving2mthellipticpartialdifferentialequations.Theconsistenterrorisestimatedandtheoptimalorderofconvergenceisproved.Numericaltestsonthenewelementsforsolvingtri-harmonic,4-harmonic,5-harmonicand6-harmonicequationsarepresented,toverifythetheory.

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  • 简介:§1.IntroductionInthispaperweconsidertheparabolicsystem(?)t/(?)ui-div(|▽u|p-2▽ui)=0(1≤i≤m),withp>1,whereui=ui(x,t),▽=gradxandxvariesinanopendomainΩ(?)RN.Thesystemisdegenerateifp>2orsingularif1

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  • 简介:在这份报纸,我们证明为非线性的进化方程ut=螖u+螞u的起始边界的价值问题吗?u3为所有k鈮?在Sobolev空间Hk拥有一个全球引起注意的人0,它吸引Hk的任何围住的域(在Hk标准的惟)。这结果被为操作员的线性semigroup使用一种重复技术和整齐估计建立,它从盒子k扩大古典结果[0,1]到盒子k[0,鈭?。

  • 标签: SOBOLEV空间 非线性发展方程 非线性演化方程 初边值问题 亚利桑那州 迭代技术
  • 简介:ThispaperdealswiththeapproximatesolutionoftheFredholmequationLu=fofthesecondkindwithf∈H’(Γ).First,wegivetheorderofthen-theoptimalradiusintheworstcasesetting.Then,weshowthattheGalerkinmethodusing2n+1innerproductsoffhasminimalerror.Finally,wegivetheestimateoftheε-complexityoftheFredholmproblemofthesecondkindandGalerkinmethodintheworstcasesetting.

  • 标签: Worst case COMPLEXITY FREDHOLM EQUATION GALERKIN
  • 简介:作者在H2(Bn)上给一个作文操作符的必要标准的上面的界限,它在S.S定义的更高维的值分发理论包含数的函数。Chern。一个标准也被给保证H2(Bn)上的作文操作员被围住或压缩。

  • 标签: 复合算子 本性范数 BN H2 上界 值分布理论
  • 简介:Inthispaper,theconceptofthes-doublydiagonallydominantmatricesisintroducedandthepropertiesofthesematricesarediscussed.Withthepropertiesofthes-doublydiagonallydominantmatricesandthepropertiesofcomparisonmatrices,someequivalentconditionsforH-matricesarepresented.TheseconditionsgeneralizeandimproveexistingresultsabouttheequivalentconditionsforH-matrices.Applicationsandexamplesusingthesenewequivalentconditionsarealsopresented,andanewinclusionregionofk-multipleeigenvaluesofmatricesisobtained.

  • 标签: H-矩阵 S-双对角占优矩阵 余角 高斯变换
  • 简介:ThisarticleobtainsanexplicitexpressionoftheheatkernelsonH-typegroupsandthenfollowtheestimateofheatkernelstodeducetheHardy'suncertaintyprincipleonthenilpotentLiegroups.

  • 标签: 不确定性原理 类型分析 热核函数 数学
  • 简介:ThenotionsoffuzzydotidealsandfuzzydotH-idealsinBCH-algebrasareintro-duced,severalappropriateexamplesareprovided,andtheirsomepropertiesareinvestigated.Therelationsamongfuzzyideal,fuzzyH-ideal,fuzzydotidealandfuzzydotH-idealsinBCH-algebrasarediscussed,severalequivalentdepictionsoffuzzydotidealareobtained.Howtodealwiththehomomorphicimageandinverseimageoffuzzydotideals(fuzzydotH-ideals)arestudied.Therelationsbetweenafuzzydotideal(fuzzydotH-ideal)inBCH-algebrasandafuzzydotideal(fuzzydotH-ideal)intheproductalgebraofBCH-algebrasaregiven.

  • 标签: 代数 模糊数学 同态现象 数学分析
  • 简介:TheauthorsconsiderthescatteringphenomenaofthedefocusingH~s-criticalNLS.ItisshownthatifasolutionofthedefocusingNLSremainsboundedinthecriticalhomogeneousSobolevnormonitsmaximalintervalofexistence,thenthesolutionisglobalandscatters.

  • 标签: 整体适定性 散焦 散射 SOBOLEV 时间间隔 NLS