This paper discusses the optimal distributed control problem for time-varying population system with spatialdiffusion. By J.
讨论了一类时变种群扩散系统的最优分布控制问题，利用J。
2
The Champs Elysees, a high-end private custom aroma for spatialdiffusion, advocates extracting natural essence and improving life quality with science and technology.
香榭尔香氛—一个倡导将用科技萃取自然精华，用科技改善生活品质的高端香氛专属定制与空间传播大师。
3
Supported by modern conveyances, spatialdiffusion of culture is becoming easier and easier. But, cross-cultural contact which based on tourism brings huge challenge to local culture with it.