By using the monotone method, a periodicreaction diffusion system of a competitor-com - petitor-mutualist is investigated.
利用单调方法讨论了一类含时滞及周期系数的反应扩散系统的竞争-竞争-互惠模型。
2
Periodic surges of intense Iranian economic nationalism must be understood partly as a reaction to the close relations between British business in Iran and the British government.