RT Journal Article
T1 Critical and supercritical higher order parabolic problems in R-N
A1 Cholewa, Jan W.
A1 Rodríguez Bernal, Aníbal
AB Due to the lack of the maximum principle the analysis of higher order parabolic problems in RN is still not as complete as the one of the second-order reaction-diffusion equations. While the critical exponents and then a dissipative mechanism in the subcritical case have already been satisfactorily described (see Cholewa and Rodriguez-Bernal (2012)), for problems in the critical or supercritical regime the questions concerning well or illposedness, as well as possible dissipative properties of the solutions, have not yet been satisfactorily answered. This article is devoted to the analysis of the higher order parabolic problems in R-N in the latter case. Focusing on the critical and supercritical regimes we give sufficient "good"-sign conditions proving that the problem is then globally well posed in L-2(R-N) and even possesses a compact global attractor. On the other hand, for supercritically growing "bad"-signed nonlinearities we show that the problem is ill-posed.
PB Elsevier
SN 0362-546X
YR 2014
FD 2014-07
LK https://hdl.handle.net/20.500.14352/33577
UL https://hdl.handle.net/20.500.14352/33577
LA eng
DS Docta Complutense
RD 27 abr 2024