Lie structures of the group of Sheffer operators

Dmitri Finkelshtein, Eugene Lytvynov, Maria Joao Oliveira

Let $\Phi$ be an (LB)-space over $\mathbb{F}=\mathbb{R}$ or $\mathbb{C}$, and let ${\Phi }^{\prime }$ be the dual space of~$\Phi$. We study the set $\mathbb{S}(\Phi )$ of Sheffer operators acting in polynomial…