THIRD_ORDER

作品数:116被引量:88H指数:5
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NONOSCILLATION RESULTS FOR A CLASS OF THIRD ORDER NONLINEAR DIFFERENTIAL EQUATIONS
《Applied Mathematics and Mechanics(English Edition)》2002年第10期1170-1175,共6页Pakize Temtek 1, Aydn Tiryaki 2 (1 Department of Mathematics, Faculty of Arts and Science, Erciyes University, 38039, Kayseri, Turkey 2.Department of Mathematics, Faculty of Arts and Science, Gazi University, Teknikokullar 06500 Ankara, Turke 
Sufficient conditions for the nonoscillatory solutions of a class of third order nonlinear differential equations are presented. The results obtained generalize some criteria given by Parhi. In some special cases, som...
关键词:differential equation nonlinear nonoscillatory solution Parhi criteria 
INSTABILITY OF SOLUTION FOR A CLASS OF THE THIRD ORDER NONLINEAR DIFFERENTIAL EQUATION被引量:1
《Applied Mathematics and Mechanics(English Edition)》1995年第12期1185-1200,共16页卢德渊 
In Ref [1] the asymptotic stability of nonlinear slowly changing system has been discussed .In Ref [2] the instability of solution for the order linear differential equaiton with varied coefficient has been discussed ...
关键词:ordinary difterential cquation motive stability theory .nonlinear differential equation 
EXISTENCE OF SOLUTIONS FOR A SINGULARLY PERTURBED BOUNDARY VALUE PROBLEM FOR THE THIRD ORDER SEMI-LINEAR DIFFERENTIAL EQUATION WITH A TURNING POINT
《Applied Mathematics and Mechanics(English Edition)》1993年第12期1089-1093,共5页蔡建平 林宗池 
The Projects supported by the National Natural Science Foundation of China
In this paper, by using the techniques of differential inequalities, we prove the existence of the solutions of a singularly perturbed boundary value problem for the third order semilinear differential equation with a...
关键词:turning point SEMI-LINEAR singular perturbation 
TOPOLOGICAL STRUCTURE OF THE SINGULAR POINTS OF THE THIRD ORDER PHASE LOCKED LOOP EQUATIONS WITH THE CHARACTER OF DETECTED PHASE BEING g(φ)=(1+k)sinφ/(1+kcosφ)
《Applied Mathematics and Mechanics(English Edition)》1992年第9期883-889,共7页金均 
In this paper, we study the topological structure of the singular points of the third order phase locked loop equations with the character of detected phase being g(?) =(1+k)sin?/1+kcos?.
关键词:singular point topological structure character of detected phase exponentially asymptotically stable Jordan form 
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