By means of lower-upper solutions methods, theory of fixed point indices and local bifurcation theory, the conditions for multiplicity and uniqueness positive solutions of this system was obtained.
运用上下解方法，不动点指数理论，局部分歧理论，得出了该系统存在多个正解或惟一正解的条件，即参数对解的个数有一定影响。
It is indicated that the flow asymmetry is an inherent property (a bifurcation behaviour) of the flow field as a nonlinear dynamic system under appropriate flowing conditions.
指出流动非对称性是绕流系统在适当流动条件下表现出的一种内在属性(一种分岔行为)。
At the same time, the center conditions and bifurcation of limit cycles at the origin of the quintic polynomial system are also investigated.
同时还研究了一类五次系统原点的中心条件及在同步扰动下原点与无穷远点的极限环分支问题。
Studied in this paper are center conditions and bifurcation of limit cycles from the equator for a class of cubic polynomial system.
本文研究了一类三次系统无穷远点的中心条件与赤道极限环分枝问题。
Air flow in a rectangular enclosure under different initial conditions and Reynolds Numbers was numerically simulated to investigate flow bifurcation phenomena.
为了研究矩形方腔内空气的流动特性，本文对不同初始条件、不同雷诺数下方腔内的流动状况进行了数值模拟。
Air flow in a rectangular enclosure under different initial conditions and Reynolds Numbers was numerically simulated to investigate flow bifurcation phenomena.
为了研究矩形方腔内空气的流动特性，本文对不同初始条件、不同雷诺数下方腔内的流动状况进行了数值模拟。
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