TY - JOUR AU - Díaz Díaz, Jesús Ildefonso AU - Alvarez, Luis PY - 2009 DO - 10.3934/dcds.2009.25.1 SN - 1078-0947 UR - https://hdl.handle.net/20.500.14352/42159 T2 - Discrete and Continuous Dynamical Systems. Series A. AB - We study some retention phenomena on the free boundaries associated to some elliptic and parabolic problems of reaction-diffusion type. This is the case, for instance, of the wait in g time phenomenon for solutions of suitable parabolic equations. We... LA - eng M2 - 1 PB - American Institute of Mathematical Sciences KW - strong maximum principle KW - equations TI - On the retention of the interfaces in some elliptic and parabolic nonlinear problems TY - journal article VL - 25 ER -