Geodesic
Rankin-Cohen brackets and invariant theory
Journal of Algebraic Combinatorics, Tome 13 (2001) no. 1, pp. 5-13.

Voir la notice de l'article provenant de la source Electronic Library of Mathematics

Summary: Using maps due to Ozeki and Broué-Enguehard between graded spaces of invariants for certain finite groups and the algebra of modular forms of even weight we equip these invariants spaces with a differential operator which gives them the structure of a Rankin-Cohen algebra. A direct interpretation of the Rankin-Cohen bracket in terms of transvectant for the group $S$L(2, C) is given.
Keywords: Rankin-Cohen brackets, ozeki and broué-enguehard maps, invariants, codes 
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Choie, Y.; Mourrain, B.; Solé, P. Rankin-Cohen brackets and invariant theory. Journal of Algebraic Combinatorics, Tome 13 (2001) no. 1, pp. 5-13. http://geodesic.mathdoc.fr/item/JAC_2001__13_1_a6/