Before revision:  These conditions are deterministic and expressed only in terms of the function b and the drift and diffusion coefficients of ~ Y. As an application we provide a deterministic criterion for the absence of bubbles in a one-dimensional setting.
After revision:  These conditions are deterministic and expressed only in terms of the function b and the drift and diffusion coefficients of Y. As an application we provide a deterministic criterion for the absence of bubbles in a one-dimensional setting.