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Mathematical Biosciences and Engineering

2010, Volume 7, Issue 1: 187-194. doi: 10.3934/mbe.2010.7.187
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An extension of the formula for spreading speeds

  • 1.
    School of Mathematics, University of Minnesota, Minneapolis, Minnesota 55455
  • 2.
    Department of Mathematics and Statistics, Memorial University of Newfoundland, St. John’s, NL A1C 5S7
  • Received: 01 April 2009 Accepted: 29 June 2018 Published: 01 January 2010

  • MSC : Primary: 37L15, 39A11; Secondary: 92D25.

  • A well-known formula for the spreading speed of a discrete-time recursion model is extended to a class of problems for which its validity was previously unknown. These include migration models with moderately fat tails or fat tails. Examples of such models are given.

    Citation: Hans F. Weinberger, Xiao-Qiang Zhao. An extension of the formula for spreading speeds[J]. Mathematical Biosciences and Engineering, 2010, 7(1): 187-194. doi: 10.3934/mbe.2010.7.187

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  • A well-known formula for the spreading speed of a discrete-time recursion model is extended to a class of problems for which its validity was previously unknown. These include migration models with moderately fat tails or fat tails. Examples of such models are given.


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