García-Prada, Oscar
Oliveira, André http://orcid.org/0000-0003-4850-6222
Funding for this research was provided by:
Fundação para a Ciência e a Tecnologia (UID/MAT/00144/2013, EXCL/MAT-GEO/0222/2012)
Fundação para a Ciência e a Tecnologia (PTDC/MAT-GEO/2823/2014)
Fundação para a Ciência e a Tecnologia (SFRH/BPD/100996/2014)
Division of Mathematical Sciences (DMS 1107452, DMS 1107452)
Division of Mathematical Sciences (DMS 1107263)
Division of Mathematical Sciences (DMS 1107263, DMS 1107367)
European Commission (PIRSES-GA-2013-612534)
Ministerio de Economía y Competitividad (MTM2013-43963-P)
Article History
Received: 26 December 2016
Accepted: 25 January 2017
First Online: 7 February 2017