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Minimal Wave Speed in a Delayed Lattice Dynamical System with Competitive Nonlinearity

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  • Fuzhen Wu

Abstract

This paper deals with the minimal wave speed of delayed lattice dynamical systems without monotonicity in the sense of standard partial ordering in . By constructing upper and lower solutions appealing to the exponential ordering, we prove the existence of traveling wave solutions if the wave speed is not smaller than some threshold. The nonexistence of traveling wave solutions is obtained when the wave speed is smaller than the threshold. Therefore, we confirm the threshold is the minimal wave speed, which completes the known results.

Suggested Citation

  • Fuzhen Wu, 2019. "Minimal Wave Speed in a Delayed Lattice Dynamical System with Competitive Nonlinearity," Discrete Dynamics in Nature and Society, Hindawi, vol. 2019, pages 1-8, June.
    • Handle: RePEc:hin:jnddns:1950767
    DOI: 10.1155/2019/1950767
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