Seminario Dottorato: Power laws, possible explanations for their ubiquity

Wednesday 16 January 2013 - Alberto Lovison

ARGOMENTI: Seminari Dottorato

Wednesday 16 January 2013 h. 15:15, room 1BC45
Alberto Lovison (Dip. Mat.)
"Power laws, possible explanations for their ubiquity"

One of the emerging and most studied features of complex systems is the frequent occurrence of power law statistics, also referred to as scaling, or scale free statistics. Power laws have been firstly detected by Vilfredo Pareto in 1897 in the distribution of wealth among the italian population, whose key feature is the famous 80/20 law. Afterwards, power laws have been discovered in countless situations for diverse natural and artificial phenomena. Although during the two last decades several scientists strived for finding a universal and physically convincing explanation for the origin of power laws, this is still considered an open problem.
In this talk we will give a brief survey on this topic and describe why multiplicative processes with a reflecting barrier could be a plausible explanation.

Rif. int. C. Marastoni, T. Vargiolu

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