Bounds on the Quenched Pressure and Main Eigenvalue of the Ruelle   Operator for Brownian Type Potentials
  In this paper we consider a random potential derived from the Brownian motion. We obtain upper and lower bounds for the expected value of the main eigenvalue of the associated Ruelle operator and for its quenched topological pressure. We also exhibit an isomorphism between the space $C(\Omega)$ endowed with its standard norm and a proper closed subspace of the Skorokhod space which is used to obtain a stochastic functional equation for the main eigenvalue and for its associated eigenfunction. 
L. Chiarini and L. Cioletti
math.DS math-ph math.MP math.PR