差分方程

Because of error by dispersing albinism differential equation, the response of difference equation is changed relative to differential equation.

由于离散化引入了误差导致白化微分方程和差分方程的响应发生了变化。

Global asymptotic stability of a class of nonlinear rational difference equation s was studied by means of setting up an auxiliary equation,so that a sufficient condition was obtained.

运用建立辅助方程的方法研究一类非线性有理差分方程正平衡点的全局渐近稳定性，得到一个充分条件。

A sufficient condition for the oscillation of bounded solutions of a kind of second order neutral differential difference equation s established.

建立了一类二阶中立型微分差分方程有界解振动的充分条件，且当变系数都是常数时，该条件也是必要的；同时，根据该方程的"极限"方程建立了它自身的一个有界振动准则。

According to the mathematics principle, three kinds of Differential equations of carry phase are deduced. The paper studies the theories and the method of integer ambiguity solution, especially researches some important methods of OTF.

依据数学原理推导了利用载波相位观测量进行定位的单差、双差、三差的相对定位差分方程：简要分析了求解整周模糊度的一般方法的流程，系统地研究了整周模糊度的解算理论和方法；对目前在线解算整周模糊度的几种重要的方法进行了理论分析。

A complete novel assumption is presented. Then, we prove the existence of two nontrivial solutions for a class of second order superlinear difference systems with the help of Minimax principle and Linking theorem in critical point theory,.6. Two applications in physics are given. Firstly, a coupled differential system coming from second harmonic waves is discussed.

利用Ricceri建立的三临界点定理，证明了一类含参数二阶差分方程在某些新的条件下至少存在三个解；随后，利用临界点理论中的极小极大原理和环绕定理，讨论了一类二阶超线性差分方程组多重解的存在性。

Discrete calculus , discrete probability distribution s, discrete Fourier transform s, discrete geometry , discrete logarithm s, discrete differential geometry , discrete exterior calculus , discrete Morse theory , difference equation s, and discrete dynamical system s.

在应用数学中，离散模型连续模型的离散近似。在离散模型中，离散方程are fit to 数据。使用递推关系是这种建模方式的一般方法。时标微积分是差分方程理论与微分方程理论的统一，应用在需要建立离散和连续同步数据模型的领域。

The difference equations and the perfectly matched layer absorbing boundary condition equations in the non-inertial frame are given.

将时域有限差分方法用于非惯性坐标系下光子晶体理论研究，给出了非惯性坐标系下的差分方程和理想匹配层边界条件。

With the help of the theory of difference equation and some subtle analysis, sufficient conditions which ensure the permanence of the system are obtained. By constructing a suitable Lyapunov functional, sufficient conditions which ensure the global attractivity of the system are obtained.

首先利用差分方程的有关理论以及技巧性的计算，得到保证该系统永久持续生存的充分性条件；其后通过构造适当的差分Lyapunov泛函，得到保证该系统全局吸引的充分性条件。

Filter factor with high computation efficiency can be obtained through resolving the difference equation without reducing the number of dimension in solving the 3D partial differential equation.

在求解三维滤波方程时不对三维微分方程进行降维处理，仅对差分方程进行分解，从而获得计算效率很高的滤波因子。

An algorithm called initial function method for the solution of differential equation with tension is also given.

推导出了不考虑拉伸和考虑拉伸情况的弹性环形变微分方程，导出了求解不考虑拉伸情况的弹性环形变微分方程的差分方程和算法，还给出了可谓之初参数法的求解考虑拉伸情况的弹性环形变微分方程的算法。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。