本文讨论两种耐用消费品的市场竞争扩散过程，研究相应的非线性市场扩散模型解的性态。
In this paper, the behavior of the solutions of the non-linear market diffusion models, which describes the market competition diffusion process of two consumer durable, was studied.
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。
By using the monotone method, a periodic reaction diffusion system of a competitor-com - petitor-mutualist is investigated.
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