BIAGI, Stefano. Large sets at infinity and Maximum Principle on unbounded domains for a class of sub-elliptic operators. Bruno Pini Mathematical Analysis Seminar, [S. l.], v. 10, n. 1, p. 83–97, 2019. DOI: 10.6092/issn.2240-2829/10364. Disponível em: https://mathematicalanalysis.unibo.it/article/view/10364. Acesso em: 23 nov. 2024.