Díaz Díaz, Jesús IldefonsoRamos Del Olmo, Ángel ManuelDesch, W.Kappel, F.Kunisch, K.2023-06-202023-06-2019983-7643-5835-110.1007/978-3-0348-8849-3_9https://hdl.handle.net/20.500.14352/60556International conference on control and estimation of distributed parameter systems (1996. Vorau, Austria)Sire prove the approximate controllability property for some higher order parabolic nonlinear equations of Cahn-Hilliard type when the nonlinearity is of sublinear type at infinity. We also give a counterexample showing that this property may fail when the nonlinearity is of superlinear type.engbook parthttp://www.springerlink.com/content/r388034203104610/http://www.springerlink.com/open access517.977.56approximate controllabilityhigher order nonlinear parabolic boundary value problemsCahn-Hilliard type equationsAnálisis numérico1206 Análisis Numérico