Multiple positive periodic solutions of n species delay competition systems with harvesting terms

作者：Li, Yongkun; Zhao, Kaihong; Ye, Yuan^*

来源：Nonlinear Analysis: Real World Applications , 2011, 12(2): 1013-1022.

DOI：10.1016/j.nonrwa.2010.08.024

• Positive periodic solutions
• Delay competition system
• Coincidence degree
• Harvesting term

This paper considers a delay nonautonomous Lotka-Volterra type multispecies competitive system with harvesting terms. The model has the intraspecific competition terms defined by functions which depend on population densities. An existence theorem of 2(n) positive periodic solutions is established by using the coincidence degree theory. An example is given to illustrate the effectiveness of our result.

• 出版日期2011-4
• 单位云南大学; 昆明理工大学