@article{CRMATH_2017__355_2_176_0, author = {Piermarco Cannarsa and Wei Cheng and Albert Fathi}, title = {On the topology of the set of singularities of a solution to the {Hamilton{\textendash}Jacobi} equation}, journal = {Comptes Rendus. Math\'ematique}, pages = {176--180}, publisher = {Elsevier}, volume = {355}, number = {2}, year = {2017}, doi = {10.1016/j.crma.2016.12.004}, language = {en}, }