Plenary talk of P. Acosta at CIMPA School 2012 https://dynamicalsystems.upc.edu/en/news/plenary-talk-of-p.-acosta-at-cimpa-school-2012 https://dynamicalsystems.upc.edu/++resource++plone-logo.svg Plenary talk of P. Acosta at CIMPA School 2012 More info: http://matematicas.udea.edu.co/cimpaschool2012/index/get.content/id/1