(p,q)-John椭球

本文主要研究(p,q)-John椭球.经典的John椭球和L_p John椭球均是(p,q)-John椭球的特殊情形.首先讨论(p,q)-John椭球的充分必要条件和连续性.得到了关于(p,q)-John椭球的不等式和包含关系,所得到的不等式和包含关系分别类似于Ball体积比不等式和John包含关系.     

不等式a~(p q) b~(p q)≥a~pb~q a~qb~p的应用

不等式ａｐ＋ｑ＋ｂｐ＋ｑ≥ａｐｂｑ＋ａｑｂｐ的应用钟成圣（安徽省合肥市中国科大附中２３００２６）定理若ａ，ｂ，ｐ，ｑ∈Ｒ＋，则ａｐ＋ｑ＋ｂｐ＋ｑ≥ａｐｂｑ＋ａｑｂｐ①当且仅当ａ＝ｂ时等号成立．证∵ｐ，ｑ∈Ｒ＋，∴幂函数ｙ＝ｘｐ和ｙ＝ｘｑ在（０，＋∞）...     

ELEMENTARY ASPECTS OF B_(p,q)~S(K_n) AND F_(p,q)~S(K_n) SPACFS

In the first part of this paper,we discuss some properties of S~Ω(K_n),L_p~Ω(K_n) andL_p~Ω(K~n;l_a) spaces,give the Plancherel-Polya-Nikol'skij type inequalities and some multipli-er theorems.In the second part of this paper,using the results of Part I we prove some prelimi-nary results for the spaces B_(p,q)~s(K_n) and F_(p,q)~s(K_n).     

从B~0到E(p，q)和E_0(p，q)空间的复合算子(英文)

设φ是单位园盘D到自身的解析映射,X是D上解析函数的Banach空间,对f∈X,定义复合算子C_φ∶C_φ)(f)=fφ．我们利用从B~0到E(p,q)和E_0(p,q)空间的复合算子研究了空间E(p,q)和E_0(p,q),给出了一个新的特征．     

从β0到E(p,q)和E0(p,q)空间的复合算子

设ψ是单位园盘D到自身的解析映射,X是D上解析函数的Banach空间,对f∈X,定义复合算子Cψ:Cψ(f)=foψ.我们利用从β0到E(p,q)和E0(p,q)空间的复合算子研究了空间E(p,q)和E0(p,q),给出了-个新的特征.     

On complemented subspaces of the spaces (l p ) N ∩l q (l q )

Summary In this paper we study the complemented subspaces of the spaces (l^p)^N∩l^q(l^q), with 1≤p<q≤∞ or q=0, thereby showing that if (l^p)^N∩l^q(l^q)=F⊕G then either F or G contains a complemented copy of the whole space. Entrata in Redazione il 19 aprile 1999. Ricevuta versione finale il 4 febbraio 2000. Research supported by the Italian MURST.     

映入E(q,p)的复合算子

§ 1 .　Introduction　　LetD ={z:｜z｜ <1}betheunitdiskofcomplexplane,H(D)bethespaceofallana lysticfunctionsonD ,denoteLebesguemeasureonDbydm ,normalizedsothatm(D) =1.Fora ∈D ,σa(z) =a-z1- az istheMobiustransformationofDtoitselfandg(z,a) =log｜1- aza-z｜istheGreenfunctionofDwithsingularityata.Everyanalyticself mapφ :D →DoftheunitdiskinducesthroughcompositionalinearcompositionoperatorCφfromH(D)toitself.Itisawell knownconsequenceofLittlewood’ssubordinationprinciple( [1],[2 ])that…     

C_(p,q)~(s+α)-forms Solution of _b-equ ation and Its L_(p,q)~s Estimates

§ 1.　Introduction　　TheinhomogeneoustangentialCauchy Riemannoperators,or b complex ,onthebound aryofadomainDinCn(n ≥ 2 ) ,hasplayedanimportantroleinthestudyofboundaryvaluesofholomorphicfunctionsandholomorphicextensioninCn(examplesseeKOHNandROSSI[3] ,AndrettiandHILL [4] ) .In 1 977,HENKIN [1 ]wasfirstlyobservedthat,if b equa tions bu =fon Dissolvable ,the (p ,1 ) form ,f ,0≤ p≤ 2 ,mustsatisfythecompatibilitycondition∫ Df∧Ψ =0forall b closed (2 p ,0 ) formsΨonDinwhich…     

WAVELETS AND BESOV SPACES B_(p,q)~s

In this paper we give a new characterization of Besov SpacesB_(q,p)~s,with r-regular (r>0) multiscale analysis.     

Stein流形上(p,q)型Koppelman-Leray-Norguet公式

设M是复n维Stein流形;并设开集D??M具有逐块C¹边界.本文利用陈度量和陈联络,把Stein流形上(0,q)形式的Koppelman-Leray-Norguet公式推广到(p,q)形式,并得到D上?-方程的解.最后,还给出了Stein流形上实非退化强拟凸多面体的Koppelman-Leray-Norguet公式及其?-方程的解.     

空间B_(p,q)~■与差分法

在[1]中我们引进了 L_p(φ),F_p(φ)空间,在本文中我们把Бесов空间B中的 L_p 范数换为 L_p(φ)范数所得空间记之为 B(φ).我们将把许多 B的结果,拓广到 B(φ)上,主要获得了 B(x)的一个迹定理和差分法在 L_p(φ)中的误差估计.     

空间B_(p,q)~(■)与差分法

在[1]中我们引进了L_p(φ),F_p(φ)空间,在本文中我们把空间B中的L_p范数换为L_p(φ)范数所得空间记之为B(φ)。我们将把许多B的结果,拓广到B(φ)上,主要获得了B(χ)的一个迹     

关于wF(p,r,q)算子类

作为wA(p,r)算子类的一个推广,该文介绍了一类更广泛的算子类即 wF(p,r,q)算子类,它包含A(p,r)类而含于F(p,r,q)类之中, 进而考虑了该类算子的特征, 包含关系, 正规性和幂性质等等.     

(U(p, q), U(p − 1, q)) is a generalized Gelfand pair

Denote by G = U(p, q) the orthogonal group of the sesqui-linear quadratic form on and let H ₁ = U(p − 1, q) be the stabilizer of the first unit vector e ₁. Let H ₀ = U(1) and set H = H ₀ × H ₁. Define the character χ _l of H by where . Define the anti-involution σ on G by . In this note we show that any distribution T on G satisfying T(h ₁ gh ₂) = χ _l (h ₁ h ₂) T(g) (g ∈ G; h ₁, h ₂ ∈ H) is invariant under the anti-involution σ. This result implies that (G,  H ₁) is a generalized Gelfand pair.      

关于L~2全纯(p,q)型的延拓

本文推广了T．Ohsawa关于L~2全纯函数的延拓理论，证明了对一般的L~2全纯（p，q）型的延拓定理．     

F(p,q,s)空间的嵌入关系

为得到一类广泛的解析函数空间F(p,q,s)之间的嵌入关系,将每个空间F(p,q,s)对应为三维空间R(F)中一点(p,q,s),从而将空间之间的嵌入关系转化为三维空间中直线的单调性进行了研究,完善了已有的结果.     

鞅论中两权(p,q)极大不等式

<正> 设(X,■,dx)是一概率空间,{■}_(n≥0)是一满足通常条件的子σ-代数的增加族,即平凡(即由所有零集生成),且设U(x),V(x)是(X,dx)上两非负可测函数,1≤p≤q<∞.一个鞅f=(f_n)_(n≥0)称为L~p(Udx)中的鞅,记为f∈L~p(Udx),如果序列{f_n}_(n≥0)在L~p(Udx)中收敛.也用f记其极限.本文中我们要刻划所     

On Ramanujan’s function k(q)=r(q)r 2(q 2)

In both his second and lost notebooks, Ramanujan introduced a function, related to the Rogers–Ramanujan continued fraction and its quadratic transformation, and listed several of its properties. We extend these results and develop a systematic theory.     

序约束下AR(p)-ARCH(q)模型参数的估计与检验

In this paper, we study a stationary AR(p)-ARCH(q) model with parameter vectors a and β. We propose a method for computing the maximum likelihood estimator (MLE) of parameters under the nonnegative restriction. A similar method is also proposed for the case that the parameters are restricted by a simple order: α1≥α2≥…≥αq, andβ1≥β2≥…βp. The strong consistency of the above two estimators is discussed. Furthermore, we consider the problem of testing homogeneity of parameters against the simple order restriction. We give the likelihood ratio (LR) test statistic for the testing problem and derive its asymptotic null distribution.