@article{COCV_2021__27_1_A27_0, author = {Tudorascu, Adrian}, title = {On the convexity condition for the {Semi-Geostrophic} system}, journal = {ESAIM: Control, Optimisation and Calculus of Variations}, year = {2021}, publisher = {EDP-Sciences}, volume = {27}, doi = {10.1051/cocv/2021018}, language = {en}, url = {https://www.numdam.org/articles/10.1051/cocv/2021018/} }