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    2009年, 第29卷, 第1期 刊出日期:2009-02-20 上一期    下一期
    本期栏目: 论文 
    论文
    ON MARKOV CHAINS IN SPACE-TIME RANDOM ENVIRONMENTS
    胡迪鹤; 胡晓予
    数学物理学报(英文版). 2009 (1):  1-10.  DOI: 10.1016/S0252-9602(09)60001-1
    摘要 ( 899 )   RICH HTML PDF(177KB) ( 1563 )   收藏

    In Section 1, the authors establish the models of two kinds of Markov chains
    in space-time random environments (MCSTRE and MCSTRE(+)) with abstract state space. In Section 2, the authors construct a MCSTRE and a MCSTRE(+) by an initial distribution Φ and a random Markov kernel (RMK) p(γ). In Section 3, the authors establish several equivalence theorems on MCSTRE and MCSTRE(+). Finally, the authors give two very important examples of MCMSTRE, the random walk in spce-time random environment and the Markov branching chain in space-time random environment.

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    BIFURCATIONS OF A CUBIC SYSTEM PERTURBED BY DEGREE FIVE
    尚德生; 张同华
    数学物理学报(英文版). 2009 (1):  11-24.  DOI: 10.1016/S0252-9602(09)60002-3
    摘要 ( 795 )   RICH HTML PDF(308KB) ( 1287 )   收藏

    In this article, using multi-parameter perturbation theory and qualitative analysis, the authors studied a kind of cubic system perturbed by degree five and obtained the system that can have 17 limit cycles giving their two kinds of distributions (see Fig.5).

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    RIEMANN BOUNDARY VALUE PROBLEMS WITH GIVEN PRINCIPAL PART
    李卫峰; 杜金元
    数学物理学报(英文版). 2009 (1):  25-31.  DOI: 10.1016/S0252-9602(09)60003-5
    摘要 ( 933 )   RICH HTML PDF(145KB) ( 1041 )   收藏
    In this article, the authors discuss the Riemann boundary value problems with given principal part. First, authors consider a special case and give a classification of the solution class Rn by the way. And then, they consider the general case. The solvable conditions for this problem and its solutions is obtained when it is solvable.
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    CRITERIA FOR AN ANALYTIC FUNCTION BELONGING TO QK SPACES
    乌兰哈斯
    数学物理学报(英文版). 2009 (1):  33-44.  DOI: 10.1016/S0252-9602(09)60004-7
    摘要 ( 694 )   RICH HTML PDF(172KB) ( 1156 )   收藏

    The author gives a mild integral condition in a nondecreasing function K: [0, ∞) → [0, ∞), which is sufficient and the best possible to ensure that f is a Bloch function if and only if f belongs to QK , a Möbius-invariant space of functions
    analytic in the unit disk. Their contributions are slight improvements of known results, and the proofs presented here are independently developed. The corresponding results for meromorphic case are also given.

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    WEIGHTED AVERAGE OF DIRICHLET KERNELS FOR VILENKIN-LIKE SYSTEM
    张传洲; 刘培德
    数学物理学报(英文版). 2009 (1):  45-55.  DOI: 10.1016/S0252-9602(09)60005-9
    摘要 ( 842 )   RICH HTML PDF(177KB) ( 1352 )   收藏
    For Vilenkin-like system, the authors define a new operator H* f:=supn|Hnf|, where Hnf is the weighted average for partial sums, and prove that H* is of type (H*p(Gm), Lp(Gm)) for all 1/2 < p ≤ ∞ . As a consequence, the authors prove the operator S*f:=supn|Snf| is of type (p, p) for 1<p< ∞, where Snf is the n-partial sum.
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    MATHEMATICAL ANALYSIS OF THE COLLAPSE IN BOSE-EINSTEIN CONDENSATE
    李晓光;张健;吴永光
    数学物理学报(英文版). 2009 (1):  56-64.  DOI: 10.1016/S0252-9602(09)60006-0
    摘要 ( 781 )   RICH HTML PDF(175KB) ( 1530 )   收藏
    In this article, the authors consider the collapse solutions of Cauchy problem
    for the nonlinear Schrödinger equation i Ψ t + 1/ 2 △ Ψ- 1 /2 ω2|x|2 ψ+|ψ|2ψ = 0, x ∈ R2, which models the Bose-Einstein condensate with attractive interactions. The authors establish the lower bound of collapse rate as tT. Furthermore, the L2-concentration property of the radially symmetric collapse solutions is obtained.
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    THE RELATION OF TWO-DIMENSIONAL VISCOUS CAMASSA-HOLM EQUATIONS AND THE NAVIER-STOKES EQUATIONS
    杨灵娥;纪艳珊;郭柏灵
    数学物理学报(英文版). 2009 (1):  65-73.  DOI: 10.1016/S0252-9602(09)60007-2
    摘要 ( 581 )   RICH HTML PDF(156KB) ( 1416 )   收藏
    In this article, the authors show the existence of global solution of two-
    dimensional viscous Camassa-Holm (Navier-Stokes-alpha) (NS-α) equations. The authors also prove that the solution of the NS-α equations converges to the solution of the 2D NS equations in the inviscid limit and give the convergence rate of the difference of the solution.
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    HOMOGENIZATION RESULTS FOR ENZYME CATALYZED REACTIONS THROUGH #br# POROUS MEDIA
    Claudia Timofte
    数学物理学报(英文版). 2009 (1):  74-82.  DOI: 10.1016/S0252-9602(09)60008-4
    摘要 ( 755 )   RICH HTML PDF(160KB) ( 1264 )   收藏

    The aim of this article is to study the effective behavior of the solution of
    a nonlinear problem arising in the modelling of enzyme catalyzed reactions through the exterior of a domain containing periodically distributed reactive solid obstacles, with period ε. The asymptotic behavior of the solution of such a problem is governed by a new elliptic boundary-value problem, with an extra zero-order term that captures the effect of the enzymatic reactions.

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    THE PITS PROPERTY OF ENTIRE FUNCTIONS DEFINED BY DIRICHLET SERIES
    尚丽娜;高宗升
    数学物理学报(英文版). 2009 (1):  83-93.  DOI: 10.1016/S0252-9602(09)60009-6
    摘要 ( 704 )   RICH HTML PDF(165KB) ( 1293 )   收藏

    The value distribution of entire functions defined by Dirichlet series are studied
    in this present article. It is proved that entire functions defined by Dirichlet series have the pits property, which improve the relative results on lacunary Taylor series obtained by Littlewood J.E. and Offord A.C.

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    REDUCED MINIMAL NUMERICAL RANGES OF OPERATORS ON A HILBERT SPACE
    杜鸿科;王月清;陆建明
    数学物理学报(英文版). 2009 (1):  94-100.  DOI: 10.1016/S0252-9602(09)60010-2
    摘要 ( 610 )   RICH HTML PDF(141KB) ( 1306 )   收藏

    In this note, the reduced minimal numerical ranges of a bounded linear oper-
    ators on a Hilbert space are defined and some of its properties are established.

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    A CLASS OF HOMOTOPIC SOLVING METHOD FOR ENSO MODEL
    莫嘉琪;林万涛;王辉
    数学物理学报(英文版). 2009 (1):  101-110.  DOI: 10.1016/S0252-9602(09)60011-4
    摘要 ( 884 )   RICH HTML PDF(151KB) ( 1383 )   收藏

    The El Niño/La Niña and the Southern Oscillation (ENSO) is an interannual
    phenomenon involved in the tropical Pacific ocean-atmosphere interactions. In this article, the aim is to create an asymptotic solving method of nonlinear equation for the ENSO models. And on the basis of a class of oscillator of ENSO models, using the method of homotopic mapping, the approximation of solution of corresponding problem is studied. It is proved from the results that homotopic method can be used for analyzing the SST anomaly in the equatorial eastern Pacific and the thermocline depth anomaly of the atmosphere-ocean oscillation for ENSO model.

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    POINTWISE CONVERGENCE RATE OF VANISHING VISCOSITY APPROXIMATIONS FOR SCALAR CONSERVATION LAWS WITH BOUNDARY
    刘红霞;潘涛
    数学物理学报(英文版). 2009 (1):  111-128.  DOI: 10.1016/S0252-9602(09)60012-6
    摘要 ( 1012 )   RICH HTML PDF(220KB) ( 1314 )   收藏

    This article is concerned with the pointwise error estimates for vanishing vis-
    cosity approximations to scalar convex conservation laws with boundary. By the weighted error function and a bootstrap extrapolation technique introduced by Tadmor-Tang, an optimal pointwise convergence rate is derived for the vanishing viscosity approximations to the initial-boundary value problem for scalar convex conservation laws, whose weak entropy solution is piecewise C2-smooth with interaction of elementary waves and the boundary. The analysis method in this article can be used to deal with the case in which the piecewise smooth solutions of inviscid have finitely many waves with possible all kinds of interaction with the boundary.

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    ALGEBROIDAL FUNCTION AND ITS DERIVED #br# FUNCTION IN UNIT CIRCULAR DISC
    霍颖莹;孙道椿
    数学物理学报(英文版). 2009 (1):  129-139.  DOI: 10.1016/S0252-9602(09)60013-8
    摘要 ( 815 )   RICH HTML PDF(174KB) ( 1032 )   收藏

    In this article, the authors define the derived function of an algeboidal function
    in the unit disc, prove it is an algabriodal function, and study the order of algebroidal function and that of its derived function in unit circular disc.

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    TOEPLITZ-TYPE OPERATORS ON LEBESGUE SPACES
    陆善镇;默会霞
    数学物理学报(英文版). 2009 (1):  140-150.  DOI: 10.1016/S0252-9602(09)60014-X
    摘要 ( 916 )   RICH HTML PDF(180KB) ( 1206 )   收藏

    Let L be the infinitesimal generator of an analytic semigroup on L2(Rn) with
    Gaussian kernel bounds, and L-α/2 be the fractional integrals generated by L for 0 < α< n. Let Tj,1 be the singular integral with nonsmooth kernel related to L, or Tj,1 = I, Tj,2, Tj,4 be the linear operators, which are bounded on Lp(Rn) for 1 < p < 1, and Tj,3 = ±I(j = 1, 2, · · · , m), where I is the identity operator. For b L1loc(Rn), denote the Toeplitz-type operator by

    Θba f = ∑m j=1 (Tj,1MbIα Tj,2 + Tj,3MbIα Tj,4),
    where Mb is a multiplication operator. When b ∈Λβ(0 < < 1), the authors consider the boundedness of Θbα.

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    ATOMIC DECOMPOSITION FOR B-VALUED R.V.SEQUENCE SPACES
    李驭繁;刘培德
    数学物理学报(英文版). 2009 (1):  151-159.  DOI: 10.1016/S0252-9602(09)60015-1
    摘要 ( 791 )   RICH HTML PDF(165KB) ( 985 )   收藏

    In this article, atomic decompositions and the duals of some B-valued r.v. se-
    quence spaces are investigated. The results show that it closely depends on the geometrical properties of the sequence that take values in.

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    REMARKS ON JOHN DISKS
    楮玉明;程金发;王根娣
    数学物理学报(英文版). 2009 (1):  160-168.  DOI: 10.1016/S0252-9602(09)60016-3
    摘要 ( 793 )   RICH HTML PDF(157KB) ( 926 )   收藏

    Let D R2 be a Jordan domain, D* = R2 \ D, the exterior of D. In this article, the authors obtained the following results: (1) If D is a John disk, then D is an outer linearly locally connected domain; (2) If D* is a John disk, then D is an inner linearly locally connected domain; (3) A homeomorphism f : R2R2 is a quasiconformal mapping if and only if f(D) is a John disk for any John disk D R2; and (4) If D is a bounded quasidisk, then D is a John disk, and there exists an unbounded quasidisk which is not a John disk.

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    NORMAL CRITERION FOR FAMILIES OF HOLOMORPHIC MAPS OF SEVERAL COMPLEX VARIABLES INTO PN(C) WITH MOVING HYPERSURFACES
    涂振汉;曹红哲
    数学物理学报(英文版). 2009 (1):  169-175.  DOI: 10.1016/S0252-9602(09)60017-5
    摘要 ( 1007 )   RICH HTML PDF(144KB) ( 1031 )   收藏

    This article gives a normal criterion for families of holomorphic mappings of several complex variables into PN(C) for moving hypersurfaces in pointwise general position, related to an Eremenko’s theorem.

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    ISOTROPIC WEYL MANIFOLD WITH A SEMI-SYMMETRIC CONNECTION
    Elif Özkara Canfes
    数学物理学报(英文版). 2009 (1):  176-180.  DOI: 10.1016/S0252-9602(09)60018-7
    摘要 ( 851 )   RICH HTML PDF(113KB) ( 1584 )   收藏

    In this work, it is proved that every isotropic Weyl manifold with a semi-
    symmetric connection is locally conformal to an Einstein manifold with a semi-symmetric connection.

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    RAZUMIKHIN-TYPE THEOREMS OF NEUTRAL STOCHASTIC FUNCTIONAL DIFFERENTIAL EQUATIONS
    周少波;胡适耕
    数学物理学报(英文版). 2009 (1):  181-190.  DOI: 10.1016/S0252-9602(09)60019-9
    摘要 ( 952 )   RICH HTML PDF(164KB) ( 1594 )   收藏

    The stability of stochastic functional differential equation with Markovian switching was studied by several authors, but there was almost no work on the stability of the neutral stochastic functional differential equations with Markovian switching. The aim of this article is to close this gap. The authors establish Razumikhin-type theorem of the neutral stochastic functional differential equations with Markovian switching, and those without Markovian switching.

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    GENERALIZED HILBERT OPERATOR AND FEJÉR-RIESZ TYPE INEQUALITIES ON THE POLYDISC
    李颂孝;Stevo Stevic
    数学物理学报(英文版). 2009 (1):  191-200.  DOI: 10.1016/S0252-9602(09)60020-5
    摘要 ( 781 )   RICH HTML PDF(185KB) ( 1144 )   收藏

    Let f be a holomorphic function on the unit polydisc Dn, with Taylor expan-
    sion
    f(z) = ∑|k|=0 akzk ≡ ∑k1+···+kn=0 ak1,···, knzk11· · · zknn
    where k = (k1, · · · , kn) ∈ Zn+. The authors define generalized Hilbert operator on Dn by
    Hγ,n(f)(z) =|k|=0 i1,···,in≥0 ai1,···,in Πnj=1Γ( γj + kj + 1)Γ(kj + ij + 1) /Γ(kj + 1)Γ(kj + ijj + 2)zk,
    where γ ∈ Cn, such that j > -1, j = 1, 2, · · · , n. An upper bound for the norm of the operator on Hardy spaces Hp(Dn) is found. The authors also present a Fejér-Riesz type inequality on the weighted Bergman space on Dn and find an invariant space for the generalized Hilbert operator.

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    AN INEQUALITY OF HOMOGENEOUS EXPANSION FOR BIHOLOMORPHIC QUASI-CONVEX MAPPINGS ON THE UNIT POLYDISK AND ITS APPLICATION
    刘小松;刘太顺
    数学物理学报(英文版). 2009 (1):  201-209.  DOI: 10.1016/S0252-9602(09)60021-7
    摘要 ( 734 )   RICH HTML PDF(163KB) ( 1258 )   收藏

    In this article, the authors obtain an inequality of homogeneous expansion
    for f, where f is a quasi-convex mapping (including quasi-convex mapping of type A and quasi-convex mapping of type B) defined on the open unit polydisk in Cn. Meanwhile, the authors also investigate its application.

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    BOUNDARY BEHAVIOR OF CAUCHY-TYPE INTEGRALS IN CLIFFORD ANALYSIS
    杜金元;许娜;张忠祥
    数学物理学报(英文版). 2009 (1):  210-224.  DOI: 10.1016/S0252-9602(09)60022-9
    摘要 ( 810 )   RICH HTML PDF(209KB) ( 1569 )   收藏

    In this article, the authors discussed the boundary behavior for the Cauchy-
    type integrals with values in a Clifford algebra, obtained some Sochocki–Plemelj formulae and Privalov–Muskhelishvili theorems for the Cauchy-type integral taken over a smooth surface by rather simple method.

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