期刊文献+
共找到9篇文章
< 1 >
每页显示 20 50 100
The Loeb Space of Denumerable Infinite Dimensional Probability Product Measure Spaces 被引量:2
1
作者 陈东立 《Northeastern Mathematical Journal》 CSCD 2003年第3期249-253,共5页
Let {(Xi, Si, μi) : i ℃ N} be a sequence of probability measure spaces and (*Xi, L(*Si), L(*μi)) be the Loeb measure space with respect to (Xi, Si, μi) for i ℃ N. Let X =× Xi, S = ×Si,μ = ×μi. We... Let {(Xi, Si, μi) : i ℃ N} be a sequence of probability measure spaces and (*Xi, L(*Si), L(*μi)) be the Loeb measure space with respect to (Xi, Si, μi) for i ℃ N. Let X =× Xi, S = ×Si,μ = ×μi. We prove that × L(*Si) CL(*S) and in embedding meaning. 展开更多
关键词 denumerable infinite dimensional product measure space Loeb measure space internal set external set
下载PDF
FRAME MULTIRESOLUTION ANALYSIS AND INFINITE TREES IN BANACH SPACES ON LOCALLY COMPACT ABELIAN GROUPS
2
作者 S.S.Panday 《Analysis in Theory and Applications》 2004年第3期231-241,共11页
We extend the concept of frame multiresolution analysis to a locally compact abelian group and use it to define certain weighted Banach spaces and the spaces of their antifunctionals. We define analysis and synthesis ... We extend the concept of frame multiresolution analysis to a locally compact abelian group and use it to define certain weighted Banach spaces and the spaces of their antifunctionals. We define analysis and synthesis operators on these spaces and establish the continuity of their composition. Also, we prove a general result to characterize infinite trees in the above Banach spaces of antifunctionals. This paper paves the way for the study of corresponding problems associated with some other types of Banach spaces on locally compact abelian groups including modulation spaces. 展开更多
关键词 frame multiresolution analysis infinite trees in Banach spaces
下载PDF
STATIONARY DISTRIBUTIONS OF INFINITE PARTICLE SYSTEMS WITH NONCOMPACT STATE SPACE. 被引量:2
3
作者 陈木法 《Acta Mathematica Scientia》 SCIE CSCD 1989年第1期7-19,共13页
This paper deals with the preblem of existence and uniqueness of the stationary distributions (abbr., s. d.'s) for the processes constructed in [4] .The main results are stated in § 1. For the reader's co... This paper deals with the preblem of existence and uniqueness of the stationary distributions (abbr., s. d.'s) for the processes constructed in [4] .The main results are stated in § 1. For the reader's convenience we first restate the existence theorems (Theorem 1 and 2) of the processes given in [4]. Then two existence theorems (Theorem 3 and 4) and a uniqueness theorem (Theorem 5) for the s. d.'s of the processes are presented. The last result (Theorem 6), as an application of the previous ones, is about the Schlgl model which comes from nonequilibrium statisticali physics. The details of the proofs of Theorem 3—6 are given in § 2—4. 展开更多
关键词 PRO STATIONARY DISTRIBUTIONS OF infinite PARTICLE SYSTEMS WITH NONCOMPACT STATE SPACE
下载PDF
AN EXTREMUM THEORY OF THE RESIDUAL FUNCTIONAL IN SOBOLEV SPACES W^(m,p)(Ω)
4
作者 Ling Yong-yong 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 1992年第3期273-279,共7页
In the present paper the concept and properties of the residual functional in Sobolev space are investigated.The weak compactness,force condition,lower semi-continuity and convex of the residual functional are proved.... In the present paper the concept and properties of the residual functional in Sobolev space are investigated.The weak compactness,force condition,lower semi-continuity and convex of the residual functional are proved.In Sobolev space,the minimum principle of the residual functional is proposed.The minimum existence theoreomfor J(u)=0 is given by the modern critical point theory.And the equivalence theorem or five equivalence forms for the residual functional equation are also proved. 展开更多
关键词 Sobolev spaces residual functional infinite Banach spaces CONVEX lower semi-continuity force condition minimum existence theorem
下载PDF
k-MAJOR ORDER IN REAL INFINITE-DIMENSIONAL LINEAR SPACE AND ITS APPLICATION
5
作者 Lu JingkuiDept.of Basic Knowledge,Shanghai Light Industry College,Shanghai 2 0 0 4 33. 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2000年第3期302-306,共5页
In this paper,the k major cone and strict k major cone in real infinite dimensional linear space are introduced,through which the k major order is defined,and their properties are also discussed.Therefore,with the ... In this paper,the k major cone and strict k major cone in real infinite dimensional linear space are introduced,through which the k major order is defined,and their properties are also discussed.Therefore,with the help of them any two elements in real infinite dimensional linear space can be compared. 展开更多
关键词 Real infinite dimensional linear space k major cone k major order.
全文增补中
Self-maps of p-local infinite projective spaces 被引量:1
6
作者 LIN XianZu 1,2 1 College of Mathematics and Computer Science,Fujian Normal University,Fuzhou 350108,China 2 Institute of Mathematics,Academy of Mathematics and Systems Science,Beijing 100190,China 《Science China Mathematics》 SCIE 2012年第4期739-744,共6页
Abstract Denote by z(p) (resp. Zp) the p localization (resp. p completion) of z. Then we have the canonical inclusion Z(p)→ zp. Let S2n-1(p) be the p-local (2n- 1)-sphere and let B2n(p) be a connected p... Abstract Denote by z(p) (resp. Zp) the p localization (resp. p completion) of z. Then we have the canonical inclusion Z(p)→ zp. Let S2n-1(p) be the p-local (2n- 1)-sphere and let B2n(p) be a connected p-local space satisfying S2n-l(p)≌ΩB2n(p), then H*B2n(p),Z(p)) = Z(p)[U] with |u| = 2n. Define the degree of a self-map f of B2n(p) to be k E Z(p) such that f*(u) = ku. Using the theory of integer-valued polynomials we show that there exists a self-map of B2n(p) of degree k if and only if k is an n-th power in Zp. 展开更多
关键词 infinite projective space self-map integer-valued polynomial
原文传递
The Maximum Dissipative Extension of Schrodinger Operator
7
作者 田立新 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 1994年第10期973-980,共8页
In the present paper we study the maximum dissipative extension of Schrodingeroperator.introduce the generalized indefinite metvic space and get the representation ofmaximum dissipative extension of Schrodinger operat... In the present paper we study the maximum dissipative extension of Schrodingeroperator.introduce the generalized indefinite metvic space and get the representation ofmaximum dissipative extension of Schrodinger operator in natural boundary space.make preparation for the further study longtime chaotic behaxior of infinite dimensiondynamics system in nonlinear Schrodinger equation. 展开更多
关键词 infinite dimension dynamics system. nonlinear Schfrodingerequation. indefinite metric space. dissipative operator
下载PDF
A microwave photonic filter based on multi-wavelength fiber laser and infinite impulse response 被引量:1
8
作者 许东 曹晔 +1 位作者 赵爱红 童峥嵘 《Optoelectronics Letters》 EI 2016年第5期325-328,共4页
A microwave photonic filter(MPF) based on multi-wavelength fiber laser and infinite impulse response(IIR) is proposed. The filter uses a multi-wavelength fiber laser as the light source, two sections of polarization m... A microwave photonic filter(MPF) based on multi-wavelength fiber laser and infinite impulse response(IIR) is proposed. The filter uses a multi-wavelength fiber laser as the light source, two sections of polarization maintaining fiber(PMF) and three polarization controllers(PCs) as the laser frequency selection device. By adjusting the PC to change the effective length of the PMF, the laser can obtain three wavelength spacings, which are 0.44 nm, 0.78 nm and 1.08 nm, respectively. And the corresponding free spectral ranges(FSRs) are 8.46 GHz, 4.66 GHz and 3.44 GHz, respectively. Thus changing the wavelength spacing of the laser can make the FSR variable. An IIR filter is introduced based on a finite impulse response(FIR) filter. Then the 3-d B bandwidth of the MPF is reduced, and the main side-lobe suppression ratio(MSSR) is increased. By adjusting the gain of the radio frequency(RF) signal amplifier, the frequency response of the filter can be enhanced. 展开更多
关键词 photonic impulse microwave spacing infinite amplifier bandwidth adjusting maintaining interferometer
原文传递
Actads
9
作者 Sophie Kriz 《Science China Mathematics》 SCIE CSCD 2022年第9期1909-1952,共44页
In this paper,I introduce a new generalization of the concept of an operad,further generalizing the concept of an opetope introduced by Baez and Dolan(1998),who used this for the definition of their version of non-str... In this paper,I introduce a new generalization of the concept of an operad,further generalizing the concept of an opetope introduced by Baez and Dolan(1998),who used this for the definition of their version of non-strict n-categories.Opetopes arise from iterating a certain construction on operads called the+-construction,starting with monoids.The first step gives rise to plain operads,i.e.,operads without symmetries.The permutation axiom in a symmetric operad,however,is an additional structure resulting from permutations of variables,independent of the structure of a monoid.Even though we can apply the+-construction to symmetric operads,there is the possibility of introducing a completely different kind of permutations on the higher levels by again permuting variables without regard to the structures on the previous levels.Defining and investigating these structures is the main purpose of this paper.The structures obtained in this way are what I call n-actads.In n-actads with n>1,the permutations on the different levels give rise to a certain special kind of n-fold category.I also explore the concept of iterated algebras over an n-actad(generalizing an algebra and a module over an operad),and various types of iterated units.I give some examples of algebras over 2-actads,and show how they can be used to construct certain new interesting homotopy types of operads.I also discuss a connection between actads and ordinal notation. 展开更多
关键词 OPERADS actads infinite loop spaces universal algebra ordinals
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部