%0 Journal Article 
%A Fernández Ouaridi, Amir
%A Navarro, R.M.
%A Towers, D.A.
%T Abelian subalgebras and ideals of maximal dimension in Poisson algebras
%D 2024
%@ 1090-266X

%U http://hdl.handle.net/10498/35874
%X This paper studies the abelian subalgebras and ideals of maximal dimension of Poisson algebras P of dimension n. We introduce the invariants α and β for Poisson algebras, which correspond to the dimension of an abelian subalgebra and ideal of maximal dimension, respectively. We prove that these invariants coincide if α(P) = n−1. We characterize the Poisson algebras with α(P) = n − 2 over arbitrary fields. In particular, we characterize Lie algebras L with α(L) = n − 2. We also show that α(P) = n − 2 for nilpotent Poisson algebras implies β(P) = n−2. Finally, we study these invariants for various distinguished Poisson algebras, providing us with several examples and counterexamples.
%K Poisson algebra
%K Lie algebra
%K abelian subalgebra
%K abelian ideal
%~ Universidad de Cádiz