TY - CPAPER AB - I study derivative expansions of effective actions at finite temperature,illustrating how the standard methods are badly defined at finite temperature.I then show that by setting up the initial conditions at a finite time, theseproblems are solved. AU - Evans,TS EP - 235 PB - World Scientific PY - 2001/// SP - 231 TI - Time Dependent Effective Actions at Finite Temperature UR - http://arxiv.org/abs/hep-ph/0010138v1 ER -