2 problems

Let $(X,\varphi)$ be a mixing Smale space, and let $S$ and $U$ denote its stable and unstable algebras, respectively. Stable–unstable rank conjecture. One has … This equality predi…

Let $(X,\phi)$ be a Smale space, and write $R^s(X,\phi)$ and $R^u(X,\phi)$ for its stable and unstable equivalence relations. Define the associated Ruelle algebras by … The assumpt…