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问题     
相关语句
  problem with
    A Free Boundary Problem with Elliptic-parabolic Equations System
    一个椭圆—抛物方程组的自由边界问题
短句来源
    Computation of the Nonlinear Problem with a Single Parameter and Bifurcation Analysis of Reaction-Diffusion Equations
    单参数非线性问题高阶奇异点的计算及一类反应扩散方程组的分歧分析
短句来源
    FINITE ELEMENT ANALYSIS OF BOUNDARY VALUE PROBLEM WITH DISCONTINUOUS COEFFICIENT
    间断系数边值问题有限元分析
短句来源
    THE INITIAL PROBLEM WITH INTEGRAL NONLINEAR SCHRDINGER SYSTEM OF EQUATIONS
    一类具积分型非线性Schrdinger方程组的初值问题
短句来源
    THE GENERALIZED CARLEMAN PROBLEM WITH TWO DISPLACEMENTS
    带两个位移的广义Carleman边值问题
短句来源
更多       
  qn
    Let f∈C(Qn), n∈N and S_R ̄(n-1)/2 (f) be the Bochner-Riesz means of critical order of f. Get the estimate for the degree of (H, q) approximation:where ω2 denotes the second modulus of continuity, q>0 and c is a constant. The saturation problem of this kind of approximation is also investigated.
    设f∈(Q_n),n∈N且S_R ̄(n-1)/2(f)是f的临界阶Bochner─Riesz平均.求得了(H,q)逼近的阶的估计:其中ω_2表示二阶连续模,q>0且c是常数.同时研究了这类逼近的饱和问题
短句来源
    This paper treats of the n-refiexivity operator space in normed space, obtaines a necessary and sufficient condition for n-refiexivity at the beginning, and then presents properties Pn,Qn and Qn- , with the 2n+l-reflexivity of these properties in weakly closed subspace proved.
    本文讨论了赋范空间下的n-自反问题,首先得到了一个n-自反的充要条件,然后给出了性质 P_n、Q_n、Q_n~,并证明了具有这三种性质的弱闭算子子空间分别是2n+1,2n,n自反的。
短句来源
  prblem
    A Finite Element Method for a Singular Perturbation Prblem of Second-order Elliptic Partial Differential Equation
    二阶椭圆型偏微分方程奇导摄动问题的有限元解法
短句来源
    Initial Value Prblem for Nonlinear Second Order Integro- differential Equations
    非线性二阶积分微分方程的初值问题
短句来源
    Computing Eigen Prblem of a Symmetric Bi-edge Diagonal Matrix
    对称双边对角矩阵的特征值问题
短句来源
    This paper discussed the cxistent conditions and the computing methods of non-unique optimal shadow price for linear programming and studied the rclation between the optimal solution of the original prblem and the optimal shadow price of its dual problem.
    本文讨论了线性规划问题非唯一的最优影子价格的存在条件和计算方法。
短句来源
    K moment prblem of the model is shown to be equivalent to optimal problem of a non-stationary discounted Markovian decision model MDP (k) .
    并将k矩最优问题化为同类型的一个马氏决策规划的一阶矩最优问题,从而也解决了这类模型的k矩最优策略的结构问题.
短句来源
更多       
  s problem
    AN EXAMPLE SOLVING REEB'S PROBLEM
    一个解答Reeb问题的例子
短句来源
    Derivative of λ--th order and Cauchy's Problem for Wave Equation(0<λ<1)
    λ—阶导数与波动方程的Cauchy问题(0<λ<1)
短句来源
    ON V.I.ARNOLD'S PROBLEM IN THE CASE n=2
    论n=2情形下的V.I.Arnold问题
短句来源
    ON THE ANALYTIC SOLUTION OF CAUCHY'S PROBLEM OF EQUATION ~(2)u/t~2+u/t=Du+(z)
    关于方程(()~2u)/(()t~2)+(()u)/(()t)=Du+()(z)的柯西问题解析解
短句来源
    The Stability of The Higher Degree Singular Point of V.I.Arnold’s Problem When n=4
    V.I.Arnold问题在n=4时高次奇点的稳定性
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      problem with
    A fundamental problem with the DWT, however, is the treatment of finite length data sequences.
          
    This article extends previous results on the Pompeiu problem with moments.
          
    Asymptotic behavior for a class of elliptic equivalued surface boundary value problem with discontinuous interface conditions
          
    A spontaneous potential satisfies and elliptic equivalued surface boundary value problem with discontinuous interface conditions.
          
    A uniform numerical method for quasilinear singular perturbation problem with a turning point
          
    更多          
      qn
    IfX(t, θ) andF(t) verify certain conditions, then there exists a sequence {Qn(t, θ)} of random polynomials such that we have almost surely: fort ε [0, +∞) or (-∞, +∞),
          
    In this paper, the properties Bp,qn, ≈Bp,qn, and ?1,qn are introduced.
          
    In this paper, a new concept of an optimal complete multipartite decomposition of type 1 (type 2) of a complete n-partite graph Qn is proposed and another new concept of a normal complete multipartite decomposition of Kn is introduced.
          
    As for any complete multipartite decomposition of Kn, there is a derived complete multipartite decomposition for Qn.
          
    It is also showed that any optimal complete multipartite decomposition of type 1 of Qn is a derived decomposition of an optimal complete multipartite decomposition of type 1 of Kn.
          
    更多          
      prblem
    A Prblem in no-Problem-Policing in Germany: Confidence in the Police Germany and USA
          
    In this paper a model of neural network underlying arithmetic prblem-solving is described.
          
    Continued vigilance and awareness of this prblem by WHO and others are therefore called for.
          
    The phtoolmer usd evades hs prblem as no post procesing is required.
          
      s problem
    In doing so, we also obtain results for Pauli's problem; in particular, we build functions that have infinitely many Pauli partners.
          
    We investigate properties of harmonic Gauss maps and their applications to Lawson-Osserman's problem, to the rigidity of space-like submanifolds in a pseudo-Euclidean space and to the mean curvature flow.
          
    The analog of Orr's problem is formulated for MHD flows.
          
    In the subsonic region, Dirichlet's problem is formulated for Chaplygin's equation in a rectangle, one side of which is the sonic line.
          
    By its formulation, the inverse problem is Cauchy's problem which, as is well-known, is incorrect in the classical sense in the ellipticity region - the subsonic section of the nozzle.
          
    更多          


    The differential equation for relaxation oscillation with external impressed e.m.f. is written as

    张弛振动之代表算式为一非直线的二次微分方程式在数学上至今未获完全解答颇耳氏(Van der Pol)曾以半解算半作图之方法研究强弛振动,但共方法仅能用於无外加控制电压之情形下故控制影响未能解说本文叙述用罗勃氏(A.A.Bobb)作图方法解析张弛振动之问题,自由振动与控制振动均可应用文中叙明通常之起始条件如何不适宜於作图及如何试设一边界条件而得正确之结果用此方法张弛振动之普通特性与频率减倍之现象,均能解说控制波与强弛振动波之相的关系,亦曾加以讨论所设对称的三次抛物线形之振动特性,未能完满解释偶谐控制波之控制功效

    The evaluation of exchange integrals which occur in the quantum theory of molecules is reduced to the solution of Poisson's equation.

    用量子力学解释分子构造时产生一种对换积分。此文将求此种积分之问题变为解Poisson偏微分方程式之问题

    In the statistical theory of superlattices in binary alloys, the dependence of the interaction energy upon atomic arrangements is taken into account by regarding the interaction energy in Bethe's theory as an average quantity depending on the degree of order and the composition of the alloy. Two simple assumptions concerning the functional relationship of the interaction energy with order and composition are made. The first is a linear function of order and composition. The second is a linear function of the...

    In the statistical theory of superlattices in binary alloys, the dependence of the interaction energy upon atomic arrangements is taken into account by regarding the interaction energy in Bethe's theory as an average quantity depending on the degree of order and the composition of the alloy. Two simple assumptions concerning the functional relationship of the interaction energy with order and composition are made. The first is a linear function of order and composition. The second is a linear function of the average numbers of pairs of atoms. The result of applying these assumptions to superlattices of the type AB is that the critical temperature as a function of the composition is a maximum for equal sumber of A and B atoms only when a certain relation between the coefficients in the assumed function is satisfied. In the cass of superlattices of type AB3 the theory of Bragg and Williams is used for simplicity. It is shown that when the composition varies, the maximum of the critical temperature may occur at any desired composition by a suitables adjustment of the coefficients in the assumed functions. There is thus a hope of removing the discrepancy between theory and experiment on this line. The anomalous specific heat at the critical temperature is also calculated for different compositions. In the case of the AB type of superlattices, Bethe's formula for the energy is no longer valid, and in order to calculate the specific heat, an approximate formula for the energy is obtained by analogy with the theory of Bragg and Williams. Finally, the problem of separation into more than one phase is briefly discussed.

    在二元合金超格之统计力学理论中,原子间互作用能量,因原子之排列不同而异,其所生之影响,吾人擬於此篇中讨论之。吾人认为有Bethe氏理论中之相互作用能量,实为一平均值,其值因合金之秩序程度及其成分而异。吾人作二简单假设:一设相互作用能量为秩序及成分之线性函数,另一设其与原子对偶之数成线性函数。将此等假设应用於AB类之合金,则必须在所设函数中之系数间,有适当关系,合金之临界温度,始在成分为1:1时,有极大值。在AB_3类之合金,吾人乃应用Bragg及Williams二氏之理论以求简便。於此可证明若所设函数中之系数,可任意调整则所计算出之临界温度之极大值可在任何成分发生。故关於此点理论与实验不合之处,可望解决。又合金之反常比热,亦经算出。在AB类之合金,Bethe氏原来之能量公式不復可用,故另用与Bragg及Williams理论比较而得之公式计算。又关於合金可分为二相或多相之问题,此篇亦大略论及。

     
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