After using the detection function, the number of limit cycles can be increased from 5 to 9 when perturbation term reaches 5 degrees, and from 9 to 10 when perturbation term reaches 7 degrees.
本文用极限环理论研究了在同次扰动下 ,通过改变扰动项或增加扰动项项数而增多极限环个数的一种方法 ,使用判定函数后发现 :5次扰动下 ,该系统极限环个数可以由 5个增多到 9个 ;7次扰动下 ,该系统极限环个数可以由 9个增多到 10个 。
Through detection functions we obtain the system has 13 limit cycles under the perturbed term of degree 7.
我们使用判定函数后发现 :该系统在 7次扰动下有 13个极限
The bifurcation of limit cycles for a linear system with 11-degree perturbations are investigated by using the detection function method.
利用判定函数法研究了一类线性系统在11次扰动下的极限环分支,证明了这类系统至多产生5个极限环,并给出了正好产生5个极限环的条件,最后给出了一个能产生五个极限环的具体例子。
Objective: Prospective certification preparatory work to establish the parameters for the hearing based on the multiple discriminant function of tinnitus dialectical clinical value.
目的:前瞻性验证前期工作中建立的以听力学指标为基础的多元判别函数对耳鸣辨证的临床价值。
Methods of Determining the Pole of Order(Finite Number) of Function;
判定函数的极点(有限数)的级的方法
The Usefulness of Analytic Geometry Ideology Method in Determining Function Monotonicity;
解析几何思想方法在判定函数单调性的应用
Mathematical Experiment and Reflections on Extreme Value of Multi-variables;
多元函数极值判定的数学实验及反思
A judging theorem about function sequence uniformly convergent;
关于函数列一致收敛的一个判定定理
About decision theory of function′s uniformly continuous
关于可导函数一致连续性的判定定理
The Decision Problem on Sheffer Functions in Partial K-Valued Logic;
部分K值逻辑中Sheffer函数的判定问题
The Decision for Sheffer Functions in Partial Multiple-valued Logic;
部分多值逻辑中Sheffer函数的判定
New Proof of the Adequate Conditions for the Judgment of Dualistic Function Extreme Point;
二元函数极值点判定的充分条件新证
The Criterion on the Stability of Exponent "Lipschitz in the Universal Differential Equation of Function;
泛函微分方程的指数Lipschitz稳定性判据
Discussion on the Conditional Extremum of Three Variable Function Through Unconditional Extremum;
用无条件极值判定多元函数条件极值
Judgement and use of function symmetry and periodicity;
关于函数对称性、周期性的判定与应用
Determinant algorithm of Sheffer function in partial three-valued logic
部分三值逻辑中Sheffer函数的判定算法
Mathematical Experiment of Extreme Value of Multi-variables on Based Mathematica;
Mathematica平台上多元函数极值判定的数学实验
Deciding Extremum for the First Class Discontinuity Point at Which a Function is Defined;
函数在有定义的第一类间断点处极值的判定
The Properties and Operations of ω-Ultradistribution Spaces;
Beurling型ω-超广义函数空间的一些判别定理
The Decision Methods of the Parity and Nonnegativity of Function and Its Applications;
函数奇偶性与非负性的判定方法及其应用
Hesse Matrix of Sufficient Condition for Extrema of n-variable implicit function;
判定n元隐函数取极值的充分条件Hesse矩阵
General Methods of Determining the Type of Extremum and Constrained Extremum of Multivariate Function;
多元函数极值和条件极值的一般判定方法