http://reply.papertrans.cn/3/280/27923/27923-31.png
http://reply.papertrans.cn/3/280/27923/27923-32.png
Submitted on: 21 August 2019.
Revised on: 17 September 2019.
Accepted on: 09 October 2019.
SIAM JOURNAL ON APPLIED DYNAMICAL SYSTEMS
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Submitted on: 17 May 2011.
Revised on: 15 June 2011.
Accepted on: 24 June 2011.
SIAM JOURNAL ON APPLIED DYNAMICAL SYSTEMS
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