期刊
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
卷 338, 期 1-2, 页码 296-299出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physa.2004.02.056
关键词
reaction-diffusion equations; language competition
We consider a model introduced recently [Nature 424(2003)900], for describing competition between two languages, which in typical situations predicts the extinction of one of them. We generalize it by introducing a spatial dependence in terms of a reaction-diffusion equation. We show that in this generalized model both languages can survive, each mostly concentrated in a different geographical area. (C) 2004 Elsevier B.V. All rights reserved.
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