@article{article8b528d43, title = {Global solvability and global hypoellipticity in Gevrey classes for vector fields on the torus}, author = {Bergamasco, Adalberto Panobianco and Dattori da Silva, Paulo Leandro and Gonzalez, R. B}, year = {2018}, doi = {10.1016/j.jde.2017.11.022}, journal = {Journal of Differential Equations} }