DASGUPTA, A.; WONG, M. The semigroup and the inverse of the Laplacian on the Heisenberg group. CUBO, A Mathematical Journal, [S. l.], v. 12, n. 3, p. 83–97, 2010. DOI: 10.4067/S0719-06462010000300006. Disponível em: https://cubo.ufro.cl/ojs/index.php/cubo/article/view/1393. Acesso em: 4 may. 2024.