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[期刊论文] 作者：Yi-fa Tang,
来源：计算数学（英文版） 年份：2000
In this paper, we solve a problem on the existence of conjugate symplecticity of linear multi-step methods (LMSM), the negative result is obtained....
[期刊论文] 作者：Yi-fa Tang,
来源：计算数学（英文版） 年份：2002
We expand the step-transition operator of any linear multi-step method with order s ≥ 2 up to O(τs+5). And through examples we show how much the perturbation...
[期刊论文] 作者：Yi-fa Tang,
来源：计算数学（英文版） 年份：2002
We give some formulae for calculation of the expansions for (1) composition of step-transition operators (STO) of any two difference schemes (DS) for ODE’s, (2...
[期刊论文] 作者：Yi-fa Tang,
来源：计算数学(英文版) 年份：2002
We get τ6-terms of the formal energy of the mid-point rule, and use the mathematical pendulum to test the convergence of the formal energy....
,EXPANSIONS OF STEP-TRANSITION OPERATORS OF MULTI-STEP METHODS AND ORDER BARRIERS FOR DAHLQUIST PAIR
[期刊论文] 作者：Quan-dong Feng,Yi-fa Tang,
来源：计算数学（英文版） 年份：2006
Using least parameters, we expand the step-transition operator of any linear multi-step method (LMSM) up to O(τs+5) with order s = 1 and rewrite the expansion...
[期刊论文] 作者：Liu Jing-Zhou,Tang Yi-Fa,
来源：中国物理（英文版） 年份：2005
A complex network with an exponential distribution p(k) ∝ e-k/kc with kc = 3.50 ± 0.02 is introduced and found to have assortative correlation = B + qki (q >...
[期刊论文] 作者：Song Yun-Zhong,Tang Yi-Fa,
来源：中国物理B（英文版） 年份：2010
...
[期刊论文] 作者：Xiang, Shuai,Chen, Yi-Fa,Guan,,
来源：世界胃肠病学杂志：英文版（电子版） 年份：2015
Primary liver carcinosarcoma is rare. Here we reportan unusual case of liver carcinosarcoma containingcombined hepatocellular cholangiocarcinoma. Amass in the r...
[期刊论文] 作者：LEI Ze-xiang,XIE Yi-fa,XU De-l,
来源：中国矿业大学学报：英文版 年份：2008
在发育营养正常促进剂湖的水的 macrophytic 生长和它的分发在与它的沉积类型和发光的关系被描述。因此，描绘 macrophytic 生长的反应到湖沉积和它的重新暂停是必要的。我们进...
Multivariable analysis of factors associated with hospital readmission following pancreaticoduodenec
[期刊论文] 作者：ZHU Zi-yi,HE Ji-kai,WANG Yi-fa,
来源：中华医学杂志（英文版） 年份：2004
Background Readmission rates after pancreaticoduodenectomy (PD) for malignant diseases have a significant impact on survival rate. Identification of risk factor...
[期刊论文] 作者：HAN Hua,CAO Zhi-qiang,HU Yi-fa,
来源：东华大学学报（英文版） 年份：2004
...
,Non-Noether symmetries and Lutzky conservative quantities of nonholonomic nonconservative dynamical
[期刊论文] 作者：Zheng Shi-Wang,Tang Yi-Fa,Fu Jing-Li,
来源：中国物理（英文版） 年份：2006
Non-Noether symmetries and conservative quantities of nonholonomic nonconservative dynamical systems are investigated in this paper. Based on the relationships...
[期刊论文] 作者：Liu Hong-Ji,Tang Yi-Fa,Fu Jing-Li,
来源：中国物理（英文版） 年份：2006
The algebraic structure and Poisson’s integral theory of mechanico-electrical systems are studied.The Hamilton canonical equations and generalized Hamilton can...
[期刊论文] 作者：Liu Hong-Ji,Fu Jing-Li,Tang Yi-Fa,
来源：中国物理（英文版） 年份：2007
In this paper Mei symmetry is introduced for a nonconservative system.The necessary and sufficient condition for a Mei symmetry to be also a Lie symmetry is der...
[期刊论文] 作者：JIANG Bo,LIN Jiang,ZHANG Yi-fa,
来源：中国中西医结合杂志(英文版) 年份：2001
Objective: To explore the relationship between mental symptoms and functional dyspepsia (FD), and the effect of Xiaoyu decoction (XYD) plus psychotherapy on FD....
Multivariable analysis of factors associated with hospital readmission following pancreaticoduodenec
[期刊论文] 作者：ZHU Zi-yi,HE Ji-kai,WANG Yi-fa,
来源：中华医学杂志（英文版） 年份：2011
Background Readmission rates after pancreaticoduodenectomy (PD) for malignant diseases have a significant impact on survival rate. Identification of risk factor...
[期刊论文] 作者：Fu Jing-Li,Chen Ben-Yong,Tang Yi-Fa,Fu Hao,
来源：中国物理B（英文版） 年份：2008
A discrete total variation calculus with variable time steps is presented for mechanico-electrical systems where there exist non-potential and dissipative force...
[期刊论文] 作者：Shuai Xiang,Yi-Fa Chen,Yan Guan,Xiao-Ping Chen,,
来源：World Journal of Gastroenterology 年份：2015
Primary liver carcinosarcoma is rare. Here we report an unusual case of liver carcinosarcoma containing combined hepatocellular cholangiocarcinoma. A mass in th...
[期刊论文] 作者：Qiu Bing-sen,Ji Mei-rong,Xu Liang-zhong,Liu Yi-fa,
来源：中华医学杂志英文版 年份：1988
...
,Discrete variational principle and first integrals for Lagrange-Maxwell mechanico-electrical system
[期刊论文] 作者：Fu Jing-Li,Dai Gui-Dong,Salvador Jiménez,Tang Yi-Fa,
来源：中国物理（英文版） 年份：2007
This paper presents a discrete variational principle and a method to build first-integrals for finite dimensional Lagrange-Maxwell mechanico-electrical systems...
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