RT Journal Article T1 Smoothing and perturbation for some fourth order linear parabolic equations in R-N A1 Quesada, Carlos A1 Rodríguez Bernal, Aníbal AB We solve some fourth order parabolic equations, obtained from perturbations of the parabolic bi-Laplacian equation, with special focus on smoothing estimates. Several classes of initial data are considered including data in Lebesgue and Bessel-Lebesgue spaces. Robustness and convergence with respect to the perturbation are also obtained. Also, initial data in large uniform Bessel-Lebesgue spaces are considered as well as equations with higher order powers of the Laplacian. PB Elsevier SN 0022-247X YR 2014 FD 2014 LK https://hdl.handle.net/20.500.14352/33470 UL https://hdl.handle.net/20.500.14352/33470 LA eng NO MEC NO UCM, Spain DS Docta Complutense RD 9 abr 2025