延拓法的英文

• continuation method

• "延"英文翻译    prolong; extend; protract
• "拓"英文翻译    open up; develop; expand
• "法"英文翻译    law
• "向上延拓法" 英文翻译 :    upward continuation
• "延拓" 英文翻译 :    continuation
• "综合开拓法" 英文翻译 :    open up by combined methods
• "延拓场" 英文翻译 :    continuation field
• "波场延拓" 英文翻译 :    wave field extrapolation
• "继续 拓展 延拓" 英文翻译 :    continuation
• "解的延拓" 英文翻译 :    continuation of solutions
• "解析延拓" 英文翻译 :    analytic continuation
• "可延拓的" 英文翻译 :    continuable
• "可延拓性" 英文翻译 :    continuability
• "连续延拓" 英文翻译 :    continuous extension
• "跳变延拓" 英文翻译 :    jump continuation
• "同构的延拓" 英文翻译 :    continuation of isomorphisms
• "位场延拓" 英文翻译 :    continuation of potential field; field continuation
• "向上延拓" 英文翻译 :    upward continuation
• "向上延拓场" 英文翻译 :    upward-continued field
• "向下延拓" 英文翻译 :    downward continuation
• "向下延拓场" 英文翻译 :    downward-continued field
• "延拓算子" 英文翻译 :    continuation operator
• "延拓系数" 英文翻译 :    continuation coefficient
• "等温静态延拓" 英文翻译 :    isothermal static continuation
• "局部向下延拓" 英文翻译 :    partial downward continuation

• A general solution function extending method for solving mixed problems of wave equation
  求解波动方程混合问题的通解函数延拓法
• Numerical continuation method for solving nonlinear difference equations of quasilinear parabolic boundary value problem
  解拟线性抛物型初边值问题差分方程的数值延拓法
• Numerical continuation method for solving nonlinear difference equations of ordinary differential equation boundary value problem
  解非线性常微分方程边值问题差分方程的数值延拓法
• Discrete approach with 15 ' 15 ' grid is adopted in order to numerically simulate and calculate the gravitational potential field generated by the homogeneous rotation - symmetric ellipsoid , and it is verified that the method , the fictitious compress - recovery and the fictitious downward continuation of the gravitational field , is reliable and valuable at the relative accuracy level higher than 10 ^ ( - 4 )
  摘要采用15 ' 15 '网格离散化手段对均质旋转对称椭球体产生的引力位场进行了数值模拟计算，在相对精度优于10 ^ ( - 4 )的水平上，验证了引力位虚拟压缩恢复法以及重力场虚拟向下延拓法的可靠性和有效性。
• Secondly , on the basis of the research on the characteristics of the wavelet coefficients , the combination of the ezw ( embedded zerotree wavelet ) and advanced rle ( run length encode ) is presented to realize the efficient codes of the wavelet coefficients . finally , the improved periodic extension algorithm is used to solve the boundary problem appeared in wavelet transform . the algorithm is realized by software and the good processing results are obtained
  论文选取cdf ( 2 , 2 )小波基，取得了较好图像压缩效果；二、通过对小波系数的特点的研究，提出了将嵌入式零树编码和改进的游程编码相结合的方法，实现了小波系数的有效编码；三、采用改进的周期延拓法解决图像进行小波分解时出现的边界问题，并通过软件实现，取得较好的处理效果。
• The paper has proved the convergence of the compound of the adaptive homotopy iteration of varying step length and the newton iteraction , and improved the result of [ 18 ] the algorithm has a powerful adaptive capacity with " homotopy " and " net grid " - two - adjusting - method
  本算法的主要特点是自适应能力强，有“同伦”和“网格”的双重调控机制。这种探索性求解是本文的一种尝试。本文证明了自适应变步长延拓法算法与newton复合迭代的收敛性，改进了文献的结果。
• In the third chapter , we will study the existence and uniqueness of the classical global solution and generalized global solution to the periodic boundary value problem and the cauchy problem for this kind of equation . in the second chapter , we study the following nonlinear wave equation of higher order : with the initial boundary value conditions or with where a1 , a2 , a3 > 0 are constants , ( s ) , f ( s0 , s1 , s2 s3 , s4 ) are given nonlin - ear functions , u0 ( x ) and , u1 ( x ) are given initial functions . for this purpose , by green ' s function of a boundary value problem for a fourth order ordinary differential equation we first reduce the problem ( 1 ) - ( 3 ) to an equivalent intergral equation , then making use of the contraction mapping principle we prove the existence and uniqueness of the local classical solution for the intergral equation
  本文分三章，第一章为引言；第二章研究一类非线性高阶波动方程的初边值问题的整体古典解的存在性和唯一性，以及古典解的爆破；第三章研究此方程的周期边界问题和cauchy问题的整体广义解和整体古典解的存在性和唯一性，具体情况如下：在第二章中，我们研究一类非线性高阶波动方程的如下初边值问题：或或其中a _ 1 ， a _ 2 ， a _ 3 0为常数， ( s ) ， ( s _ 0 ， s _ 1 ， s _ 2 ， s _ 3 ， s _ 4 ， )为已知的非线性函数， u _ 0 ( x ) ， u _ 1 ， ( x )为已知的初始函数，为此，我们先用四阶常微分方程边值问题的green函数把上述问题转化为等价的积分方程，然后利用压缩映射原理证明此积分方程局部古典解的存在性和唯一性，又用解的延拓法证明上述问题整体古典解的存在性和唯一性，主要结果有：定理1设u _ 0 ( x ) ， u _ 1 ( x ) c ~ 4 [ 0 , 1 ]且满足边界条件( 2 ) ，若以下条件满足：其中a , b月0为常数， w