http://reply.papertrans.cn/1/76/7539/7539-11.png
http://reply.papertrans.cn/1/76/7539/7539-12.png
Submitted on: 19 May 2021.
Revised on: 26 June 2021.
Accepted on: 04 August 2021.
___________________DISCRETE AND CONTINUOUS DYNAMICAL SYSTEMS
http://reply.papertrans.cn/1/76/7539/7539-14.png
Submitted on: 28 December 2006.
Revised on: 09 March 2007.
Accepted on: 10 April 2007.
___________________DISCRETE AND CONTINUOUS DYNAMICAL SYSTEMS
http://reply.papertrans.cn/1/76/7539/7539-16.png
http://reply.papertrans.cn/1/76/7539/7539-17.png
Submitted on: 22 March 2017.
Revised on: 29 April 2017.
Accepted on: 12 May 2017.
___________________DISCRETE AND CONTINUOUS DYNAMICAL SYSTEMS
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