利用拓扑度理论研究了在脉冲条件下这种系统的周期解。
Based on topological degree theory, periodic solutions for this system under impulsive conditions are studied.
本文利用拓扑度理论研究三阶微分系统反周期解的存在性。
Using topological degree the existence of anti-periodic solutions for third order differential systems is studied.
使用的主要方法有锥上的不动点理论、拓扑度理论和上下解方法等。
Some efficient tools such as topological degree theory, fixed point theory and lower and upper method have been applied.
应用分歧理论及拓扑度理论的方法，得到了定态分歧解的存在性、唯一性及稳定性。
The results concerning the existence, the uniqueness and the stability of stationary bifurcation solutions have been obtained by the bifurcation theory and topological degree theory.
使用锥上拓扑度理论，研究二阶非线性奇异微分方程组两点边值问题正解的存在性。
By using fixed point index theory in a cone, we study the existence of positive solutions of boundary value problems for systems of nonlinear second order singular differential equations.
利用拓扑度理论中的连续定理以及M -矩阵的性质获得了该系统正周期解存在的充分条件。
By using the continuation theorem of topology degree theory and properties of nonsingular M-matrix, we obtain sufficient conditions for the existence of positive periodic solutions of this system.
利用拓扑度理论对一类非线性泛函差分方程周期解的存在性进行了讨论，得到该问题周期解的一个存在定理。
The existence of periodic solution to nonlinear functional difference equation is considered by using the topological degree, and a periodic solution of this problem is obtained.
主要研究一类三阶两点边值问题变号解的存在性和多重性，利用不动点指数和拓扑度理论等得到了新的结论。
We show existence results for multiple sign-changing solution for third-order two- point boundary value problems by using the fixed point index and the topologic degree theory.
本文主要利用拓扑度理论中的不动点定理和变分方法中的极小作用原理及其环绕形式的临界点定理在适当的条件下讨论了一类二阶椭圆边值问题的可解性。
The aim of this thesis is to study the existence of weak solutions for semilinear second order elliptic boundary value problems under suitable conditions through topological and variational methods.
本文提出用信号流图理论求灵敏度的一种拓扑方法。
This paper presents a topological technique for the sensitivity calculation by means of singal flow graphs theory.
研究并采用超图理论，将大规模，高连通度的无线传感器网络拓扑抽象为超图模型，从而有效减少网络控制消息。
Using the hypergraph theory, the paper represents the large-scale wireless sensor networks into the hypergraph model, which can effectively decrease the control messages in routing process.
本文提出用信号流图理论求灵敏度的一个拓扑方法。
This paper gives a topological method for calculating the sensitivity by means of signal flow graph theory.
研究并采用超图理论，将大规模，高连通度的无线传感器网络拓扑抽象为超图模型，从而有效减少网络控制消息。
Based on the hypergraph theory, the paper represents the large-scale wireless sensor networks into the hypergraph model, which can effectively decrease the control messages in routing process.
由集值映射的拓扑度延拓理论，推导出了上半连续集值1 -集压缩映射的拓扑度。
According to the extensive theory of topological degree for set-valued mapping, the authors derive the topological degree for upper semicontinuous set-valued 1-set-contractive mapping.
由集值映射的拓扑度延拓理论，推导出了上半连续集值1 -集压缩映射的拓扑度。
According to the extensive theory of topological degree for set-valued mapping, the authors derive the topological degree for upper semicontinuous set-valued 1-set-contractive mapping.
应用推荐