Interlinguistic similarity and language death dynamicsJ. Mira1 and Á. Paredes2
1 Departamento de Física Aplicada, Universidade de Santiago de Compostela E-15782 Santiago de Compostela, Spain
2 Departamento de Física de Partículas, Universidade de Santiago de Compostela E-15782 Santiago de Compostela, Spain
received 9 September 2004; accepted in final form 18 January 2005
published online 2 February 2005
We analyze the time evolution of a system of two coexisting languages (Castillian Spanish and Galician, both spoken in northwest Spain) in the framework of a model given by Abrams and Strogatz (Nature 424 (2003) 900). It is shown that, contrary to the model's initial prediction, a stable bilingual situation is possible if the languages in competition are similar enough. Similarity is described with a simple parameter, whose value can be estimated from fits of the data.
89.65.-s - Social and economic systems.
© EDP Sciences 2005