Model of World; her cities, languages and countries

Details Model of World; her cities, languages and countries Model of World; her cities, languages and countries

2007-10-10

arxiv.org/abs/0710.2023v1

Physics

Physics and Society

19 pages, 5 figures. Datet for IJMPC issue 18

Scientific paper

10.1142/S0129183108012261

The time evolution of Earth with her cities, languages and countries is considered in terms of the multiplicative noise and the fragmentation- processes, where the related families, size distributions, lifetimes, bilinguals, etc. are studied. Earlier we treated the cities and the languages differently (and as connected; languages split since cities split, etc.). Hence, two dis- tributions are obtained in the same computation at the same time. The same approach is followed here and Pareto-Zipf law for the distribution of the cities, log-normal for the languages, decreasing exponential for the city families (countries) in the rank order over population, and power law -2 for the language families over the number of languages in rank order are obtained theoretically in this combination for the first time (up to our knowledge) in the literature; all of which are in good agreement with the present empirical data.

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