period of a function

Some conclusions on periodic function;关于周期函数的一些结果R1N汉语字典

By constructing periodic function, the periodic demand of Fourier transformation will be meeted.该方法通过构造周期函数,满足了频域法中进行Fourier变换的周期性条件,从而克服了经典频域三点法中直线形状误差的非封闭性、非周期性以及端点的不连续而引起的高阶谐波分量失真等边缘效应。R1N汉语字典

We mainly use the Brouwer s theorem getting sufficient conditions for the existence of a unique asyptotically stable periodic solution to two competition species when the intrinsic growth rates are periodic functions of time.利用不动点定理得到了两竞争物种当自然增长率为t的周期函数时唯一、稳定的正周期解存在的充分条R1N汉语字典

Under a first integral curve is genus 1,the period function of quadratic reversible systems is monotonious,through the research on the monotonicity of the period function of a class of quadratic reversible systems,by the use of the Picard-Fuchs equation method in this paper.利用Picard-Fuchs方程,研究了一类二次可逆系统周期函数的单调性问题,获得了在首次积分曲线是亏格1时的二次可逆系统周期函数单调的结论。R1N汉语字典

This thesis of Master is composed of four chapters,which mainly studies several kinds of the second order nonlinear differential equations about the oscillatory and asymptotic behavior of solutions,the existence of limit cycles and the period function of a center.本硕士论文由四章组成,主要讨论了几类二阶非线性微分方程解的振动性与渐近性,极限环的存在性以及中心的周期函数的单调性。R1N汉语字典

Firstly,the period function can be written as T(ρ,ε)=2π+(?)T_i(ρ)ε~i,andthen the formulas for T_i(ρ) is given.讨论了一类平面多项式系统的周期函数的临界周期的个数。R1N汉语字典

Periodic Waves and Solitary Waves in Zakharov System by a Jacobi Elliptic Function Approach;Zakharov系统的雅可比椭圆函数的周期波和孤立波R1N汉语字典

Probed into cycle function and cycle properties of the sum,the difference,the product and the quotient of it;对周期函数及其和、差、积、商函数周期性的探讨R1N汉语字典

Also Talk about the Existence of Minimal Positive Period in Periodic Function;也谈周期函数的最小正周期的存在性R1N汉语字典

The Relationship of Pseudo Almost Periodic Function and Pseudo Almost Periodic Function Sequence;伪概周期函数和伪概周期序列的关系R1N汉语字典

A Numerical Differentiation Method for Period Function with Noisy Data一种带噪声的周期函数数值微分方法R1N汉语字典

By using properties of scalar almost periodic function, properties of uniform almost periodic matrix function are discussed.利用纯量概周期函数性质讨论了一致概周期矩阵函数的一些性质。R1N汉语字典

HIGHER ORDER BIFURCATION OF CRITICAL PERIODS FROM A PLANAR POLYNOMIAL SYSTEM一类平面多项式的周期函数的高阶临界周期R1N汉语字典

On the 2-periodic(0,δ~m)Trigonometric Interpolation Problem of Antiperiodic Function反周期函数的2-周期(0,δ~m)三角插值的收敛性R1N汉语字典

Studied periodic function and its least positive period.研究了周期函数及其最小正周期的若干问题。R1N汉语字典

Almost Periodic Type Functions and Solutions of Almost Periodic Type Differential Equations;概周期型函数和概周期型微分方程的解R1N汉语字典

The Periodic Solutions Expressed in Terms of Jacobian Functions for Drinfeld-Sokolov Equations;Drinfeld-Sokolov方程组的Jacobi函数周期解R1N汉语字典

Judgement and use of function symmetry and periodicity;关于函数对称性、周期性的判定与应用R1N汉语字典

The Periodic Autocorrelation Function of Pseudorandom Sequences over GF(q)GF(q)上伪随机序列的周期自相关函数R1N汉语字典

On construction of orthogonal periodic wavelt of birariate Box splines function二元Box样条的正交周期小波函数构造R1N汉语字典

Some Estimates on Periodic Quasisymmetric Functions关于伴随周期拟对称函数的一些估计R1N汉语字典

Solutions of mixed exp-function and periodic solutions of triangle function to (2+1)-Dimensional Boussinesq Equation(2+1)维Boussinesq方程的混合型指数函数解和三角函数周期解R1N汉语字典

The Number of Critical Periods for a Planar Polynomial System一类平面多项式系统的周期函数的临界周期个数R1N汉语字典

Convergence of Antiperiodic [0,P[(1/2h)δ]] Trigonometric Interpolation for Odd Equidistant Nodes奇数个结点上反周期函数的2-周期[0,P[(1/2h)δ]]三角插值收敛性R1N汉语字典