The main idea of the finite difference method is as follows: We consider the discrete difference equation with the finite alphas as approximate substitution for the differential equation with the continuous variant and boundary conditions.

有限差分方法的基本思想是用離散的在线观看AV网站永久免费香蕉，只含有有限個(gè)未知數(shù)的差分方程去近似代替連續(xù)變量的微分方程及邊界條件亚洲综合熟女少妇，并把相應(yīng)的差分方程解作為微分方程的近似解又粗又大又长又硬起来了。

This main approach is also coincidence degree theory. Moreover, when the time scale T is chosen as the sets of real or integer numbers, the existence of periodic solutions for its differential or difference equation are obtained respectively.

若分別選取時(shí)標(biāo)T為實(shí)數(shù)集或整數(shù)集時(shí)厕拍网站，則分別得到它的微分方程或差分方程周期解的存在性欧美亚洲视频网，這就避免了對(duì)這些生態(tài)系統(tǒng)的微分和差分方程周期解的存在性分別進(jìn)行討論美女扒开尿口给男人桶的动态图。

To discuss deeply, this article use indirect means to research by difference differential equation, that is: using the Liyapnof function to discuss the time delay stability of one-dimensionality force telepresence system in order to determine the time delay limits which could ensue the system work normal.

為了進(jìn)一步深入討論，本文還從差分微分方程入手香蕉欧美，采用間接法進(jìn)行進(jìn)一步討論久久久久久久久精品无码中文字幕，即：利用李亞普諾夫函數(shù)對(duì)一維力覺臨場(chǎng)感系統(tǒng)的時(shí)延穩(wěn)定性進(jìn)行討論，確定保障系統(tǒng)正常工作的時(shí)延界限美美美女视频高清免费。

This article use the improved integral inequalities with the deviate variable and some skills of inequalities as well as related knowledge about second-order differential equation,to obtain the following results: the classification of limit point case or limit circle case and boundedness for second order differential or difference equation with deviative variable,discussed the classification for certain n-order differential equations,Criteria for the classification of second order differential equation with deviative variable.

本文利用推廣的具有偏差變?cè)姆e分不等式亚洲另类精品久久久，結(jié)合不等式的一些技巧以及常微分方程的相關(guān)知識(shí)對(duì)一類二階具有偏差變?cè)奈⒎址匠碳耙活惗A差分方程極限圓型的分類問題作了相關(guān)的研究工作www.在线毛片，并且討論了一類n階具有偏差變?cè)某Ｎ⒎址匠探獾钠椒娇煞e性與有界性和一類二階非線性具有偏差變?cè)奈⒎址匠探獾挠薪缧浴?/p>

In the PFD, both the differentials and non-differential terms in the differential equation are discretized, and the coefficients of the power series are determined by means of eliminating the truncation error of the corresponding modified scheme, then the high accurate difference scheme is obtained.

攝動(dòng)有限差分方法在微分方程的差分近似中，離散微商項(xiàng)的同時(shí)中文字幕无码观看，也離散非微商項(xiàng)99视频色色，把非微商項(xiàng)攝動(dòng)展開成網(wǎng)格步長(zhǎng)△x的冪級(jí)數(shù)，并通過提高差分格式相應(yīng)修正微分方程誤差階的方法求出攝動(dòng)冪級(jí)數(shù)系數(shù)污污作文1000字男男，從而獲得高精度差分格式日韩美女激情A片免费视频99。

The main contents of this course include: the construction, convergence, compatibility and stability of finite difference scheme of elliptic equation, parabolic equation and hyperbolic equation, the construction method and computation format of finite difference scheme of a system of partial differential equations.

本課程主要內(nèi)容有：橢圓型方程的有限差分格式的構(gòu)造，有限差分格式的收斂性www.97av.com，相容性及穩(wěn)定性尹人网国产精品、拋物型方程的有限差分格式的構(gòu)造，有限差分格式的收斂性A片观看，相容性及穩(wěn)定性99re热视频这里只精品人人妻、雙曲型方程的有限差分格式的構(gòu)造，有限差分格式的收斂性亚洲一级黄色视频在线观看，相容性及穩(wěn)定性欧美精选一区二区、偏微分方程組的有限差分格式的構(gòu)造方法及有關(guān)的計(jì)算格式。

In this paper, a high order accuracy difference method is presented for solving unsteady convection diffusion equation by using Implicit Perturbation Finite Difference scheme.

本文利用攝動(dòng)差分思想中文字幕亚洲激情，對(duì)定常對(duì)流擴(kuò)散方程中的空間微商系數(shù)進(jìn)行攝動(dòng)展開，展開冪級(jí)數(shù)系數(shù)通過消去攝動(dòng)格式修正微分方程的截?cái)嗾`差項(xiàng)求出在线免费观看中文字幕，由此獲得方程的隱式攝動(dòng)差分格式中国内地最新一级A毛片免费不卡视频，將此方法應(yīng)用于非定常對(duì)流擴(kuò)散方程，并加以修正中国小帅全裸在线观看，得到該方程的修正隱式攝動(dòng)差分格式欧美日韩亚洲又粗又大A级视频。

In this paper, a high order accuracy difference method is presented for solving unsteady convection diffusion equation by using Implicit Perturbation Finite Difference scheme. Firstly, we use the steady convection diffusion equation, the constant coefficients of this equation are expanded to power series of grid-spacings, then the high-order Perturbation Finite Difference scheme is obtained by determining the coefficients of the power series. Put this scheme on unsteady convection diffusion equations and modified it, the IPFD scheme is constructed.

本文利用攝動(dòng)差分思想，對(duì)定常對(duì)流擴(kuò)散方程中的空間微商系數(shù)進(jìn)行攝動(dòng)展開人与动人物XXXX国产AAAA片，展開冪級(jí)數(shù)系數(shù)通過消去攝動(dòng)格式修正微分方程的截?cái)嗾`差項(xiàng)求出国产午夜羞羞视频在线观看，由此獲得方程的隱式攝動(dòng)差分格式，將此方法應(yīng)用于非定常對(duì)流擴(kuò)散方程中字在线中文字幕，并加以修正91精品丝袜国产高跟在线一区，得到該方程的修正隱式攝動(dòng)差分格式。

Based on the given results of second order boundary value problem, the existence of solutions of nonlinear differential-difference equation and unique of solutions of Hammerstein type integro-differential-difference linear equation were established because Hammerstein linear equation featured only one solution.

以二階邊值問題的已知結(jié)果為基礎(chǔ)欧美人视频，建立了微分差分非線性方程解的存在性亚欧无码真人永久在线，以及Hammerstein型線性方程解的唯一性。

Main contents are as follows :In chapter one, we give a survey to the development and current state of the oscillation of differential equations and difference equations. We also introduce some preliminary material , including some basic concepts of the oscillation theory and some important fixed point theorems.In chapter two, we investigate the oscillation of second order self-conjugate differential equation with impulses.

本文由五章組成av成网站，主要內(nèi)容如下：第一章概述了微分方程及差分方程的應(yīng)用背景和國(guó)內(nèi)欧美一级高潮片黑人免费99、外研究狀況，這一章也包括一些預(yù)備知識(shí)好在线观看视频免费不卡日本，如有關(guān)微分方程最新地址你懂的、差分方程理論的基本概念和重要的不動(dòng)點(diǎn)定理又大又粗视频。