Dao, N. A.Díaz Díaz, Jesús Ildefonso2023-06-182023-06-182016-05-010022-247X10.1016/j.jmaa.2015.11.059https://hdl.handle.net/20.500.14352/24481We prove global existence of nonnegative solutions to the one dimensional degenerate parabolic problems containing a singular term. We also show the global quenching phenomena for L1 initial datums. Moreover, the free boundary problem is considered in this paper.engA gradient estimate to a degenerate parabolic equation with a singular absorption term: The global quenching phenomenajournal articlehttp://www.sciencedirect.com/science/article/pii/S0022247X15011324http://www.sciencedirect.comopen access517.9Degenerate parabolic equationsGradient estimateQuenching phenomenonL1-initial datumFree boundaryEcuaciones diferenciales1202.07 Ecuaciones en Diferencias