  In the paper "Dynkin Games Via Dirichlet Forms and Singular Control of
One-Dimensional Diffusion", the authors tried to show the existences of a
smooth value function and an optimal policy to a one-dimensional stochastic
singular control problem, where the underlying process is a generalized
diffusion process given by dX_t=\mu(X_t)dt+\sigma(X_t)dw_t, in which w_t is a
Wiener process. It is found that either a condition on \mu(x) and \sigma(x)
should be added, or a different diffusion process should be considered and as a
result, the main theorem of this paper should be amended.
