Imad Eddine Bousbaa, Ali Chouria, Jean-Gabriel Luque. A combinatorial Hopf algebra for the boson normal ordering problem.
Annales de l’Institut Henri Poincaré (D) Combinatorics, Physics and their Interactions, European Mathematical Society, 2018, 5 (1), pp.61-102.
⟨10.4171/AIHPD/48⟩.
⟨hal-02096030⟩