It is obtained a sufficient and necessary condition on x~n-bx-a having a irreducible quadratic factorization x~2-sx-t in Q based on the recurrence, founded a relation between the coefficients a and b of x~n-bx-.
在此基础上得到三项式xn-bx-a存在Q上不可约二次因式x2-sx-t的充要条件,建立了三项式xn-bx-a的系数a、b与不可约二次因式x2-sx-t的系数s、t之间的联系。
Using Baker methods, it is proved that if x n-x-a has quadratic factorization, then n<512 880, except that case n≡2(mod6) and a=-1.
设n是大于 4的正整数 ,a是非零整数 ,运用Baker方法证明了 :如果三项式xn -x-a有二次因式 ,则除了n ≡ 2 (mod 6 )且a =- 1这一情况以外 ,必有n<51 2 880 。
In this aper, Using Baker methods, we prove that if x n-x-a has quadratic factorizations, then n <512880, except case n ≡2(mod6) and a=-1.
设 n是大于 4的正整数 ,a是非零整数 ,本文运用 Baker方法证明了 :如果三项式 xn- x- a有二次因式 ,则除了 n≡ 2 (mod6)且 a=- 1这一情况以外 ,必有 n<51 2 880 。
In this paper, a new deterministic-annealing-based point-matching algorithm is presented, in which a quadratic form is used as barrier term.
为了对基于确定性退火技术的点匹配算法进行改进 ,提出了一种采用二次式作为阻尼项的算法。
In this paper,using the Baker method,we prove that if the trinomi a l x-n-x-a has a quadratic factor over Q,then n<512880 ex cept when n≡2(mod 6) and a=-1.
本文运用Baker方法证明了 :如果三项式xn-x -a在Q上有二次因式 ,则除了n≡ 2 (mod 6)且a =-1这一情况以外 ,必有n <51 2 880 。
The irreducible quadratic factors of x~n-x-a;
x~n- x- a的不可约二次因式(英文)
Analysis on The Condition of Factorization of Inhomogeneous Dual-variable Quadratic Polynomials;
二元二次非齐次多项式因式分解的条件分析
A Elementary Method of n Variables Power Two Polynomial Factorization;
n元二次多项式因式分解的初等方法
The Irreducible Quadratic Factorizations of the Polynomial x~n-bx-a;
多项式x~n-bx-a的二次不可约因式
The amended pattern is therefore chosen for the second trial.
因此所修正的图式被选作第二次尝试。
Judgement of the Factorization of a Quadratic Heterogeneous Polynomial with n Varibles;
n元实二次多项式因式分解的矩阵判别法
an equation of the first [second] degree
一 [二] 次方程式
A Discriminance for Binary Quantie to Be Factoredin Read Number;
二元二次多项式可在实数范围内分解因式的判别法
Conics Projective Geometry and Application of the Nature of the Discussion
射影二次曲线的几何性质讨论及应用——二元二次多项式因式分解的理论
Cause Analysis on Higher Secondary Voltage of Capacitor Voltage Transformer
电容式电压互感器二次电压偏高的原因分析
The Second Internet Revolution (2)
第二次因特网革命（2）
The Second Internet Revolution (l)
第二次因特网革命(1)
The branch of algebra that deals with quadratic equations.
二次方程式论处理二次方程式的代数学的分支
Different Surgical Methods in Hypertensive Intracerebral Hemorrhage and Secondary Insults;
高血压脑出血的外科治疗方式与二次脑创伤因素研究
The empirical result of analyzing here can be concluded as follow: The error of Markov model is the smallest, Tow-factor is the second smallest, and Heuristic model is the smallest.
实证结果得知在有限资料笔数下，马可夫模式预测结果较佳，二因子模式次之，引导式模式第三。
Inverse formula of polynomial automorphisms in plane Jacobi cojecture;
二元二次Jacobi猜想的求逆公式
metric normal form of quadratic form
二次形式的度量标准形式
a curve or surface whose equation (in Cartesian coordinates) is of the second degree.
方程式是二次方程式的曲线或表面。