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math.PR2015
Asymptotics for randomly reinforced urns with random barriers
Patrizia Berti, Irene Crimaldi, Luca Pratelli +1
An urn contains black and red balls. Let be the proportion of black balls at time and random barriers. At each time , a ball is drawn. If …
math.PR2015
Central limit theorems for a hypergeometric randomly reinforced urn
Irene Crimaldi
We consider a variant of the randomly reinforced urn where more balls can be simultaneously drawn out and balls of different colors can be simultaneously added. More precisely, at…