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Search Results: 1 - 10 of 167623 matches for " 陈煊 "
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一类微分方程解和小函数的关系
The Relation between Solutions of a Class of Differential Equations with Functions of Small Growth
 [PDF]

刘薇,
Pure Mathematics (PM) , 2011, DOI: 10.12677/pm.2011.13035
Abstract:

在文中研究了微分方程f\"+A1f'+A0f=0 f\"+ A0f=0的解以及它们的一阶导数与小函数的关系,其中A0A1是不恒为零的有限级整函数,其零点收敛指数小于其增长级,且A0/A

线性微分方程亚纯解的零点和增长级的定量估计
Quantitative Estimations on Zeros and Growths of Meromorphic Solutions of Linear Differential Equations
 [PDF]

黄惠,
Pure Mathematics (PM) , 2014, DOI: 10.12677/PM.2014.43013
Abstract:

本文研究了高阶齐次和非齐次线性微分方程无穷极亚纯解的增长性问题,使方程的零点和增长性得到了精确估计。
In this paper, we investigate the growth of linear order meromorphic solution of higher order homogeneous and no-homogeneous linear differential equation, and we obtain some precise estimates for their zeros and hyper-orders.

关于线性微分方程的解的性质
The Relation between Solutions of a Class of Higher Order Differential Equations with Periodic Coefficients and Functions of Small Growth
 [PDF]

王青,
Pure Mathematics (PM) , 2012, DOI: 10.12677/pm.2012.22015
Abstract: 在文中研究了微分方程 的解以及它们的一阶导数与小函数的关系。
In this paper, we investigate the differential equations
and. Moreover, we obtained the relation between solutions of the two differential equations and their 1th derivatives of differential equa-tion and small functions.
一类高阶周期微分方程的解和小函数的关系
The Relation between Solutions of a Class of High-er-Order Periodic Differential Equations with Functions of Small Growth
 [PDF]

娄伟,
Pure Mathematics (PM) , 2012, DOI: 10.12677/PM.2012.24028
Abstract: 在本文中研究了一类高阶周期微分方程的解和它们的一阶,二阶导数与小函数之间的关系,进而探讨这类解的不动点及超级的问题,得到它们的不动点性质,由于受到周期微分方程的制约,与一般整函数的不动点性质相比有所不同。
In this paper we research the relation between solution of a class of higher-order periodic differential equations with their first derivative, second derivative and functions of small growth. And then discuss fixed points and hyperorder of the class of solutions to get the character of their fixed points. Under the condition of the higher-order periodic differential equations, the character of their fixed points is different from other general entire functions’.
一类高阶线性微分方程亚纯解与小函数的关系
Relation between Meromorphic Solutions of a Class of Higher Order Linear Differential Equations and Functions of Small Growth
 [PDF]

敏风,
Pure Mathematics (PM) , 2014, DOI: 10.12677/PM.2014.41002
Abstract:
本文研究了一类亚纯函数系数高阶齐次和非齐次线性微分方程的亚纯解的增长性,并进一步研究了它们的亚纯解与小函数的关系。其中某一个系数具有有限亏值或满足一定条件,其余系数也满足相应的条件。
In this paper, we consider the growth of the meromorphic solutions of a class of higher order homogeneous and non-homogeneous linear differential equations with meromorphic coefficients, and further consider the relation between their meromorphic solutions and functions of small growth, where one of these coefficients has a finite deficient value or satisfies some conditions, others satisfy corresponding conditions.
多项式系数的齐次微分方程解的级与零点
The Order and Zeros of the Solutions of the Differential Equation with Polynomial Coefficients
 [PDF]

丁培雄,
Pure Mathematics (PM) , 2011, DOI: 10.12677/pm.2011.13041
Abstract: 本文研究的是齐次线性微分方程f(k)+Ak-1f(X-1)+...+A0f=0的解的性质,其中系数Aj 是多项式,As 起控制作用,在满足某些条件的情况下,我们得到了:该方程的若干个线性无关解的级与零点收敛指数跟As 有紧密联系。
This paper investigates the properties of solutions to a linear differential equation f(k)+Ak-1f(X-1)+...+A0f=0 , whose coefficients Aj are polynomial. If As plays a main role and satisfy some particular conditions, we draw a conclusion that As make a compact connection with the solutions of this equation.
二阶微分方程的解的不动点及与小函数的关系
The Fixed Points of the Solutions of Second Order Differential Equation and the Relationship with Small Functions
 [PDF]

罗雪琴,
Pure Mathematics (PM) , 2012, DOI: 10.12677/PM.2012.23020
Abstract: 在本文中,我们研究了二阶微分方程:当f'f的系数具有相同级且等于1时,方程的解的不动点以及解与小函数之间的关系。
In this paper, we study the second order differential equation: when  f' with the same level of f coefficient and equal to one, the fixed points of the solutions of equation and the relationship with the small functions.
关于非齐次线性微分方程解的复振荡

科学通报 , 1991,
Abstract: 本文使用值分布的标准记号,与文献[1]所讨论的问题有所不同。
电阻率时间推移测井解释方法研究

天然气工业 , 1996,
Abstract: ?电阻率时间推移测井是一种能消除复杂岩性、复杂孔隙结构和厚层围岩影响,并能划分出油、气、水层的较好方法。但目前该解释方法还欠完善。从泥浆滤液侵入剖面的基本状况和条件入手,考虑粒间孔隙储层、裂缝性储层、油层和气层侵入剖面的差异,得出了电阻率时间推移测井定性、定量解释方法。对粒间孔隙储层而言,可不考虑泥浆电阻率和相对密度变化的影响;但对裂缝性储层还需考虑这两个因素的影响。测井时,掌握两次测井的时间十分重要,第一次测井时间选在滤液侵入储层较浅时,第二次选在侵入较深时。应用该法对塔里木油田数口井测井资料进行解释,其结果与试油资料相吻合,表明该法具有极大的运用和推广价值。
武夷山自然保护区生态环境及其开发利用
易之、
资源科学 , 1995,
Abstract: 武夷山自然保护区生态环境及其开发利用陈易之,陈煊(福建省武夷山生物研究所,武夷山市354300)1生态环境主要特征从生态观点来说,作为生物的最重要分子──植被与动物、微生物和非生物环境构成了生态系统。武夷山自强保护区受人为干扰和影响较小,保持着较原始...
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