@article{CRMATH_2023__361_G7_1163_0, author = {Guti\'errez, \'Alvaro and Rosas, Mercedes H.}, title = {Necessary conditions for the positivity of {Littlewood{\textendash}Richardson} and plethystic coefficients}, journal = {Comptes Rendus. Math\'ematique}, pages = {1163--1173}, publisher = {Acad\'emie des sciences, Paris}, volume = {361}, number = {G7}, year = {2023}, doi = {10.5802/crmath.468}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.5802/crmath.468/} }