齊次多程 的英文怎麼說
中文拼音 [qícìduōchéng]
齊次多程
英文
homogeneous equation-
In the last forty years the research for finding solitary wave solutions has been experienced a great growth and some sucessful methods including the inverse scattering theory, backland transform, hirota ' s bilinear methods and the homogeneous balance method have been presented in succession
近四十年來非線性演化方程孤波解的解法研究蓬勃發展，相繼誕生了一些比較成功的求解方法，如反散射方法、 b （ ? ） ckland變換方法、 hirota方法以及齊次平衡方法等，這些方法多年來得到了廣泛的發展和應用。In chapter three, we in - troduce the homogeneous balance method and improve some key steps in it, then by using this method we are able to obtain mul - tiple soliton solutions of some nonlinear partial differential equa - tions
第三章，討論了利用齊次平衡法求解非線性方程孤子解的問題，並對其一個關鍵步驟進行改進，使其能夠求解非線性方程的多孤子解。The increase - order of solutions of higher order homogeneous linear differential equations with polynomial coefficients
多項式系數高階齊次線性微分方程解的增長級In this paper, we investigate the increase - order of solutions of higher order homogeneous linear differential equations with polynomial coefficients. we have obtained the precise result
摘要研究了多項式系數高階齊次線性微分方程解的增長級問題，得到了比前人更精確的結果。It is necessary to construct a subsystem, orgnizational system, social service system, macromanagement system, technique system and human resource development system. it adopts seven main promotive models, the science - research - base model, new & high - tech industrial park model, enterprise technology centre model, industrial technology development centre, engineering research centre model, science - research - production union model, and teconology plan model. it also utilizes the fo llowing eight policies in struments synthetically : tax policy, finance policy, governnent purchase policy, intellectual property rights protection policy, promoting the development of msb, human resource development and management policy, promoting the dovelopment of social service system policy, and industry policy
建設多元化、高度開放的組織系統，門類齊全、功能活躍的社會服務系統，高效率、間接調控的宏觀管理系統，多層次、階段遞進的技術系統，以職業技能開發為起點，以創造力開發為目標的人力資源開發系統等五大子系統，採取科研基地模式、高新技術產業開發區模式，企業技術中心模式、行業技術開發中心模式、工程研究中心模式、科研生產聯合體模式、科技計劃模式等七大推進模式，綜合運用財稅政策、金融政策、政府采購政策、知識產權保護政策、促進中小企業發展政策、人力資c廟二工會匕汐一召樸傘一二仕山人8日食《玄啃鼠析笨本小析竿《 ， d杯刀又刁」 b七三從斤一、 i人工七丁。( 1 ) based on two types of riccati equations, two kinds of new methods are proposed to obtain solutions of nonlinear differential equations. twelve families of exact solutions of wbk equation are found by using one of two methods ; ( 2 ) the homogeneous balance method is improved cind investigated to ( 2 + l ) - dimensional broer - kaup equation such that many families of new solutions are derived. ( 4 ) based on the isospectral lax pair of riccati form for generalized kdv equation with the force term, new darboux transformation and solitary - like wave solutions and rational solutions are obtained ; ( 4 ) by constructing darboux transformation and the superposition formula of generalized variable coefficients kdv equation with the force term, new single solitary - like wave solutions, double solitary - like wave solutions and rational solutions are found for ( 2 + l ) - dimensional generalized kp equation
第二章和第三章考慮非線性偏微分方程的精確解的構造：首先給出了c - d對和c - d可積系統的基本理論，然後在第三章中具體研究了它們的應用： （ 1 ）基於兩種riccati方程，提出了兩種新的求解非線性微分方程更多解的方法，利用其中的一種方法，得到了wbk方程的12組精確解； （ 2 ）對齊次子衡法進行改進，以致於獲得了（ 2 + 1 ） -維broer - kaup方程的很多新解； （ 3 ）基於帶有外力項的廣義kdv方程的riccati形式的非等譜lax對，提出了該方程的一個新的darboux變換，利用該變換，得到了新的類孤波解和有理解； （ 4 ）通過構造了帶有外力項的變系數kdv方程的darboux變換及疊加原理，獲得（ 2 + 1 ） -維廣義kp方程的新的類單孤波解、雙類孤波解和有理解。The author considered great numbers of transmission characteristics of real channel in lms model and properly simplified it according to requirement in the project. the key characteristics in the model include multi - path fading, shadow fading, doppler shift, propagation noise, multi - path delay and and state transform of three status homogeneous markov chain described by lms model, etc. the key characteristics of channel are properly collocated and made to be the evidence theory of hardware implementation
Lms模型考慮了大量的實際通道傳輸特性，結合課題需求，實現過程中對lms模型做了適當簡化，考慮了其中的多徑和陰影衰落、多普勒頻移、傳播噪聲、多徑延遲以及lms模型所描述的三狀態齊次markov鏈的狀態轉換等，對其所描述的主要通道特性適當組合，以此作為硬體實現時的理論依據。The solving steps are as follows : the field is divided into three regions by the cylindrical surface of the finite - length cylinder and the location of the delta - coils. because " the surface current source is placed at the interface, the non - homogenous restricted equation on the magnetic vector potential is transformed into the homogenous helmholtz equation. by using the method of separation of variables to solve equation and according to the interface conditions and the condition at infinity to determine the unknown constants, the expressions for the magnetic vector potential of the three regions are solved out
在求解過程中，假定放置式圓柱線圈是由無窮多個對稱圓環線圈密饒而成，首先求解含有有限長磁芯的通電對稱圓環線圈的電磁場：以有限長圓柱磁芯的側面和圓環線圈所在圓柱面為分界面將場域劃分為三個小區域，由於場源放置在內邊界面上，使得關于矢量磁位的非齊次約束方程轉化成齊次亥姆霍茲方程，利用分離變量法求解，根據分界面鄭州大學碩十研究生畢業論文摘要條件以及無限遠條件確定待定常數，從而得到各場區矢量磁位的表達式。This condition comes down to the problem of finding the solution of a set of quadratic equations. the solution of this set of quadratic equations is a set of orthonormal vectors, which makes the equations more easily solved
具體使用這個判據時，雖然也要解方程組，但該方程組是一個二次齊次方程組，而且其解有較好對稱性，因此該判據對很多態都可方便地使用。Finally, we study the ( 2 + l ) - dimension nonlinear dispersive long wave equation skillfully, we find the self - transformation between the two equations and turn the ( 2 + l ) - dimension nonlinear dispersive long wave equation into a simple ( 2 + l ) - dimension pde. then, with the homogeneous balance method we obtain the hopf - cole transformation between the ( 2 + l ) - dimension pde and the heat equation. through it, we obtain abundant exact solutions of the ( 2 + l ) - dimension nonlinear dispersive long wave equation with the matlab, including the multi - solitary wave solutions
） : = 0 . （ 2 ）巧妙的發現了（ 1 ）與（ 2 ）之間的自變換，將這個方程組轉化為一個簡單的偏微分方程，並利用齊次平衡法得到了此方程與熱傳導方程之間二維形式的物pf - cofe變換，從而藉助m胡ab的符號運算得到了2 + l維非線性色散長波方程包括多孤子解在內的多種新精確解。Multiplicity of periodic and subharmonic solutions to second order nonhomogeneous nonlinear difference equations and systems
二階非齊次非線性差分方程與方程組的次調和周期解的多解性Among various srgms, the srgm of the type of the non - homogeneous poisson process ( nhpp ) is very important, which absorbs most researches and are applied widely. such a model generally assumes that the testing environment and the operating environment of software are same, namely, the failure data of software obtained in the testing environment can predict the reliability of software in the operating environment
非齊次泊松過程（ non - homogeneouspoissonprocess ，簡稱nhpp ）類軟體可靠性增長模型是軟體可靠性增長模型中非常重要的一類，也是目前研究最多、應用較廣的一類模型，這類模型一般假設軟體的測試環境與軟體的運行環境相同，即用軟體在測試條件下獲得的失效數據能夠預測軟體在運行時的可靠性。This paper mainly study some nonlinear evolution equations with physical background by using the homogeneous balance method and the tanh method, based on the soliton theory and method
本文基於現有的孤立子理論與現代計算機技術，運用齊次平衡法及tanh函數法，研究了多種具有物理背景的非線性發展方程。To sidestep the deficiency of sampling way, we take a precondition on the initial polynomial system, and use the optimal solution of new system to approximate the optimal solution of initial system
針對矩陣montecarlo方法的特點，本文提出了對多項式系統的預處理，並用預處理之後最小m -齊次b zout數對應的分組來近似原方程組的最優分組。分享友人