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delay hyperbolic equation 时滞双曲型方程
A clase of leap-frog finite difference scheme with higher stability propertiesfor a hyperbolic equation Ut+aUx=0 are proposed in this paper. 本文提出了一种数值求解双曲方程Ut+aUx=0的高稳定性蛙跳显格式。
The paper deals with the existence of global solution for some semilinear hyperbolic equation with initial and boundary value by using Galerkin method and compactness criteria. 应用Galerkin方法及紧致性原理,研究了一类非线性双曲型方程初边值问题整体解的存在性。
In this paper,some GE schemes for the first order hyperbolic equation with constant coefficients are given.Then we analysis the stability and the error. 本文给出一阶常系数双曲型方程初边值问题的几类GE算法,分析它们的稳定性与收敛性。
A class of nonconforming finite elements are applied to hyperbolic equation with semidiscretization on anisotropic meshes, the optimal error estimates are derived. 摘要在各向异性条件下，讨论了双曲型方程的一类非协调有限元逼近，给出了半离散格式下的最优误差佑计。
Conventional seismic data processing method uses hyperbolic equation to describe time-distance formula of reflection wave, error of this equation increases with the increase of heterogeneity, anisotropy and spread length. 常规地震资料处理方法是利用双曲线方程来描述反射波时距曲线规律，此方程随着地层非均质性、各向异性和排列长度的增加，其误差变大。
The results obtained shows the intrinsic difference of the neutral hyperbolic equations from hyperbolic equation. 这些结果充分揭示了中立型双曲方程与双曲型方程存在质的差异。
The numeric solution!of hyperbolic equation by FEA indicates that the deductions should comply with the acoustic parameters such as sound velocity, vibration range, wave shape etc. 波动方程的有限元数值解表明 ,在锚杆灌浆体内部缺陷的探测中可用声速、幅值、波形等声参数作为判断的依据。
Thereinto ADI method for first order hyperbolic equation is discussed emphatically.Numerical experiments are given and results indicate that ADI method is practicable and effective. 其中重点阐述了一阶双曲型方程的ADI算法，并给出了数值试验，结果表明ADI算法是正确的、高效的。
The nonexistence of global weak solution to elliptic equation and the evolution equation, together with the nonexistence of local weak solution to hyperbolic equation is contained in this paper. 本文运用试验函数法研究了带有非局部源的偏微分方程的全局弱解的不存在性，内容包括椭圆方程、发展方程全局解的不存在性以及双曲型方程的局部弱解的不存在性。
Necessary and Sufficient Conditions for Oscillation of Solutions of Delay Hyperbolic Differential Equation 时滞双曲型微分方程解的振动充要条件
The coefficient functions of the hyperbolic equations considered are assumed to be piecewise constant. 我们假设在所考虑的微分方程中，系数函数为片段常函数。
Linear triangular element is considered to solve second order hyperbolic equations on anisotropic meshes in 2-D. 讨论各向异性网格下线性三角形有限元对二阶双曲方程的逼近问题。
The oscillation of a class of nonlinear hyperbolic equations with continuous distributed deviating arguments is studied. 研究了一类带连续分布的滞变量的非线性双曲方程的振动性.
Cui Baotong, Li Weinian. Oscillation of systems of hyperbolic equations with functional arguments[J]. Appl. Anal. , 1999, 72(1-2): 43-56. 郑立辉;潘德惠.;家庭轿车需求量预测的分布参数系统方法[J]
Super convergence of semidiscretization interpolation coefficients of guasilinear hyperbolic equations is discussed by using GFEM. 3.;讨论了拟线性双曲方程的半离散插值系数有限元的超收敛性。
No delay! We urgently need these books. 决不要拖延！我们急需这些书。
Then we analyze hyperbolic equations solving algorithms and deduceassociated algorithm of Taylor series expansion and Least-Lquares estimation,stimulate the algorithm. 然后分析了双曲线定位方程的求解算法,推导了泰勒级数展开结合最小二乘估计联合求解算法,并对算法性能进行了仿真;
The delay made the patient go purple in the face. 时间的拖延使病人脸色发紫。
We decided to delay our wedding until next year. 我们决定把婚礼推迟到明年。