简介:LetLbeann-dimensionalnilpotentLiealgebrawithabasis{x1…,xn),andeveryxiactsasalocallynilpotentderivationonalgebraA.Thispapershowsthatthereexistsasetofderivations{y1,…,yn}onU(L)suchthat(A#U(L))#k{y,1,…,yn]isismorphictotheWeylalgebraAn(A).Theauthoralsousesthede4rivationstoobtainanecessaryandsufficientconditionforafinitedimesionalLiealgebratobenilpotent.
简介:LetAandBbeC^*-algebras,SupposethatKisthealgebraofallcompactoperatoraonaseperableHilbertspace,andαisanactiononthestablealgebraκ×AinducedbySU(∞).ItisprovedthatifAisα-invariantstableisomorphictoB1thenthereisa^*-isomorphismbetweenAandB.AnanalogousresultisobtainedbyconsideringOn×κ×Aintheplaceofκ×A,whereOnistheCuntsalgebra(3≤n<∞)。
简介:Inthispaper,severalusuallyusedpolynomialinterpolationmethodsareexplainedinviewofvectorbasisanddimensioninlinearalgebratheory.Usingtransitionmatrixes,generalconversionformulabetweenthebasisfunctionsetsofthesepolynomialinterpolationmethodsaregiven.Anexamplealsoshowstheeffectivenessoftheresults.
简介:ThispaperconstructsaclassofHarish-Chandramoduleswithmultiplicity<-1ofthetwoparameterdeformationofVirasoroalgebraandprovesaclassificationtheorem.
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:LetFbeafieldofcharacteristiczero.Wn=F[t(+1/2),t(+1/2),...,t(+1/n)]δ/δt1+...+F[t(+1/2),t(+1/2),...,t(+1/n)]δ/δtnistheWittalgebraoverF,Wn+=F[t1,t2...,tn]δ/δt+...+F[t1,t2...,tn]δ/δtnisLieshbalgebraofWn.ItiswellknownbothWnandWn+aresimpleinfinitedimensionalLiealgebra.InZhao'spaper,itwasconjecturedthatEnd(Wn^+)-{0}=Aut(Wn^+)anditwasprovedthatthevalidityofthisconjectureimpliesthevalidityofthewell-knownJacobianconjecture.Inthisshortnote,wechecktheconjectureaboveforn=1.WeshowEnd(W1^+)-{0}=Aut(W1^+).