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- By Hurwitz criterion, we prove the existence and local stabilities of the positive periodic solution. 利用Hurwitz判据得到了地方病平衡点的存在性及局部稳定性。
- By using a fixed point theorem in cones, we investigate a second-order equation and the theorem of existence of unique positive periodic solution is given. 摘要应用不动点定理，研究了一类二阶时滞微分方程，给出了其唯一周期正解的存在性定理。
- Sufficient conditions are obtained for the global existence of a positive periodic solution of periodic neutral delay predator-prey system by using the method of coincidence degree theory. 利用重合度理论建立了一类周期中立型时滞捕食者-食饵系统正周期解的全局存在性的充分条件.
- A Positive Periodic Solution of a Food Chain System 一类食物链条系统的正周期解
- almost positive periodic solution 概周期正解
- Global positive periodic solution 全局周期正解
- Baaed on the fixed point theorem of two-point extension type, sufficient conditions are derived for the existence of positive periodic solutions of delay difference equations. 摘要利用两点拉伸型不动点定理给出一阶时滞差分方程周期解存在性的充分条件。
- 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 a fixed point theorem in cones, sufficient conditions are obtained for the existence of multiple positive periodic solutions for a class of difference equations with state-dependent delays. 本文利用锥不动点定理,得到一类具时滞状态依赖差分方程多周期解的存在性的充分条件,且我们的结果推广和改进了原有的结果。
- Chapter two establishes easily verifiable sufficient criteria for the existence of positive periodic solutions of the generalized ecological competition system with impulse and infinite delay. 第二章证明本文的主要结果，建立所研究系统存在正周期的充分性判据；
- A Positive Periodic Solution to a Class of Neutral Delay Logarithmic Model 一类中立型对数种群模型的周期正解
- Global Existence of Positive Periodic Solution of Competition Systems with a Finite Number of Dispersion Delays 具有有限个时滞的竞争系统全局周期解的存在性
- Global Existence of Positive Periodic Solution of a Class Ratio-Dependent Predator-Prey System with Time Delays 具有时滞和基于比率的一类捕食者-食饵系统全局周期解的存在性
- Global Existence of Positive Periodic Solution of a Food Chain System with Holling Type Functional Response 具有功能性反应的三种群食物链系统全局周期解的存在性
- Multiplicity of Positive Periodic Solution to Second Order Superliner Singular Equations 二阶超线性奇异方程的正周期解问题
- POSITIVE PERIODIC SOLUTION OF SINGLE SPECIES MODEL WITH FEEDBACK REGULATION AND INFINITE DELAY 具反馈控制和无穷时滞单种群模型周期正解
- GLOBAL EXISTENCE OF POSITIVE PERIODIC SOLUTION OF A THREE SPECIES FOOD-CHAIN SYSTEM WITH DEVIATING ARGUMENTS 具有偏差变元的三种群食物链系统的全局正周期解的存在性
- The Existence of Positive Periodic Solution to a Time-Lag Predator-Prey System with Functional Response 时滞捕食-食饵系统正周期解的存在性
- The Existence of Positive Periodic Solution for a Predator Prey System with Dispersion and Time Delay 一类带扩散与时滞的食饵捕食系统的正周期解的存在性
- Existence of Positive Periodic Solution for Difference Equations of a Cooperative System 离散时间的互惠系统的正周期解的存在性
