Dynamic consistent NSFD scheme for a viral infection model with cellular infection and general nonlinear incidence

作者：Xu, Jinhu^*; Hou, Jiangyong; Geng, Yan; Zhang, Suxia

来源：Advances in Difference Equations, 2018, 2018(1): 108.

DOI：10.1186/s13662-018-1560-8

• NSFD scheme
• General nonlinear incidence
• Discrete-time model
• Global dynamics

We study a discrete-time model with diffusion that describe the dynamics of viral infections by using nonstandard finite difference (NSFD) scheme. The original model we considered was a viral infection model with cellular infection and general nonlinear incidence. We analyze thoroughly the dynamical properties of both discrete and original continuous models and show that the discrete system is dynamically consistent with the original continuous model, including positivity and boundedness of solutions, equilibria, and their global properties. The results imply that the NSFD scheme can efficiently preserve the global dynamics properties of the corresponding continuous model. Some numerical simulations are carried out to validate the theoretical results.

• 出版日期2018-3-27
• 单位西安理工大学; 西安交通大学; 西北大学