@article{AIF_2016__66_2_589_0, author = {Battaglia, Erika and Biagi, Stefano and Bonfiglioli, Andrea}, title = {The {Strong} {Maximum} {Principle} and the {Harnack} inequality for a class of hypoelliptic {non-H\"ormander} operators}, journal = {Annales de l'Institut Fourier}, pages = {589--631}, publisher = {Association des Annales de l{\textquoteright}institut Fourier}, volume = {66}, number = {2}, year = {2016}, doi = {10.5802/aif.3020}, language = {en}, url = {https://aif.centre-mersenne.org/articles/10.5802/aif.3020/} }