RT Journal Article T1 External fluctuations in front dynamics with inertia: the overdamped limit A1 Sancho, José María A1 Sánchez, Angel AB We study the dynamics of fronts when both inertial e ects and external fluctuations are takeninto account. Stochastic fluctuations are introduced as multiplicative white noise arising from a controlparameter of the system. Contrary to the non-inertial (overdamped) case, we nd that important featuresof the system, such as the velocity selection picture, are not modi ed by the noise. We then compute theoverdamped limit of the underdamped dynamics in a more careful way, nding that it does not exhibitany e ect of noise either. Our result poses the question as to whether or not external noise sources can bemeasured in physical systems of this kind. PB Springer SN 1434-6028 (print version) SN 1434-6036 (online version) YR 2000 FD 2000-11-01 LK https://hdl.handle.net/10016/15128 UL https://hdl.handle.net/10016/15128 LA eng DS e-Archivo RD 1 may. 2024