de Finetti-type theorems on quasi-local algebras and infinite Fermi tensor products

Vitonofrio Crismale, Stefano Rossi, Paola Zurlo

Local actions of ${\mathbb{P}}_{\mathbb{N}}$, the group of finite permutations on $\mathbb{N}$, on quasi-local algebras are defined and proved to be ${\mathbb{P}}_{\mathbb{N}}$-abelian. It…