T. Roland

Isomorphisms of $\ell^1$-crossed products of topological systems

We give a complete description of the isometric isomorphisms between the $\ell^1$-crossed products of actions of discrete groups on nonempty compact Hausdorff spaces. In particular, two such crossed products are isometrically isomorphic as Banach algebras if and only if the actions are topologically isomorphic. It foll...