@article{CRMATH_2014__352_3_219_0, author = {Leo, Rosario Antonio and Sicuro, Gabriele and Tempesta, Piergiulio}, title = {A theorem on the existence of symmetries of fractional {PDEs}}, journal = {Comptes Rendus. Math\'ematique}, pages = {219--222}, publisher = {Elsevier}, volume = {352}, number = {3}, year = {2014}, doi = {10.1016/j.crma.2013.11.007}, language = {en}, url = {http://www.numdam.org/articles/10.1016/j.crma.2013.11.007/} }