1) power series of functions in several variables
多元幂级数
1.
The techniques of computing the domain of convergence and sum function and expanding functions in several variables to power series of functions in several variables are mainly discussed by many examples.
引入了多元函数项级数的概念,给出了其收敛域及和函数的定义;通过详实的例子讨论了多元幂级数的收敛域、和函数及多元函数展开为多元幂级数的计算方法。
2) multiple power series
多重幂级数
3) random power series in several complex variables
多复变数随机幂级数
4) power series
幂级数
1.
A proof to the analysis property of sumfaction of power series;
幂级数和函数分析性质的一种证明
2.
Elucidation about convergence radius of the sum of two power series;
关于2个幂级数和的收敛半径的说明
3.
A survey of solutions of sum functions of power series;
幂级数和函数的解法综述
5) power series method
幂级数法
1.
The prediction of the PIM amplitude and power by using the power series method;
幂级数法对无源交调幅度和功率的预测
2.
The natural frequencies and critical flow velocities of Timoshenko pipe are calculated by power series method.
用幂级数法计算了Tim oshenko 管道的固有频率和临界流速。
3.
Based on the Hamilton s principle for elastic systems of changing mass, a differential equation of motion for viscoelastic curved pipes conveying fluid was derived using variational method, and the complex characteristic equation for the viscoelastic circular pipe conveying fluid was obtained by normalized power series method.
根据变质量弹性系统Hamilton原理,用变分法建立了输流粘弹性曲管的运动微分方程,并用归一化幂级数法导出了输流粘弹性曲管的复特征方程组· 以两端固支Kelvin_Voigt模型粘弹性输流圆管为例,分析了无量纲延滞时间和质量比对输流管道无量纲复频率和无量纲流速之间的变化关系的影响· 在无量纲延滞时间较大时,粘弹性输流圆管的特点是它的第1、2、3阶模态不再耦合,而是在第1、第2阶上先发散失稳,然后在1阶模态上再发生单一模态颤振·
6) fuzzy power series expansion
Fuzzy幂级数
1.
In this paper, the authors define the fuzzy power series expansion and discuss the fuzzy function expanding into fuzzy power series, moreover, the fuzzy power series expansion of a class of type LR fuzzy function is given.
引入一类Fuzzy幂级数 ,讨论了Fuzzy函数的Fuzzy幂级数的展开 ,进而讨论了一类LR型Fuzzy函数的展开。
补充资料:渐近幂级数
渐近幂级数
asymptotic power series
渐近幕级数[asymp峭c脚wer series;a~or.,.,.翻cra暇”曰甫p朋] 关于序列 {x一”}(x*oo)或者序列 {(x一x。)n}(x*x。)的渐近级数(见函数的渐近展开(asymPtotic exPan-sion)).渐近幂级数可以象收敛幂级数那样进行加、乘、除和积分运算. 设两个函数f(x)和g(x)当x~co时具有下列渐近展开 巴a_畏瓦 f(X)~》:—,g《义)~夕一一丁. 子二〕x“石诬b厂’这时,有 畏Aa.+Bb. l、Af(x、+Bg〔x)~)’— n=OX’(A,B为常数); 华耘C. ‘11(X,gIX】~): ,三劝X” 11恩d- ,,商一j0--+患访,a“铸o饥,d。可象对收敛幂级数那样来计算); 4)如果函数f(x)当x>a>O时是连续的,则 二f 0.)。。 ,l_“11_奋气“n+1 口1 111.一口n一—l口t~夕—, 二「‘J曰nx~(5)渐近幕级数汗不总能进行微分,但是如果八劝典有能够展外为渐近幂级数的连续导数,则 “一’一盘竺黔 渐迈幂级数的例r_ )令、一只已.兴二; 召e‘介冲r一l丫lr佃十12邓 V大e月卜’tX二卜一)、一仁“_“_ 一,月}之.户乙.,丫月 门一0乙一叮一n二X〕t门,I了六“(、)是零阶Hankel函数(Hankel rbncl,()ns)日面的渐近幂级数对}一切_、发散). 对少复变量一的函数,在无穷远点的邻域内或者在‘卜角内,当:),时,类似的结论也成立.在复变量的J清况拜5)只有厂列形式:如果函数f(:)在区域I)一{曰一>“一,长盯g二}<川中是正则的,并且在包含干l)巾的任何闭角囚、当{:},羌川,依盯g:一致地有 半乙a, I饭2.~)— 月二02则在包含于I)中}〔何闭角内,’绳:{卜二时,依盯g: 致地有 浮乙I奋口. f了夕、~一、,一‘二一 价而z’
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条