RT Journal Article T1 On a class of nonlinear degenerate parabolic equations A1 Herrero, Miguel A. AB The paper is a nice brief review of fundamental results about the initial value problem for one-dimensional nonlinear degenerate parabolic equations of "porous media'' type: ut=[φ(ux)]x, x∈R, t>0, with φ continuous, nondecreasing, φ(0)=0, |φ(s)|→∞ as |s|→∞. The results concern existence, uniqueness and regularity of solutions with initial data u0 in L2 (u0 not necessarily of one sign). When u0≥0 has compact support, regularity and growth results of the interfaces demarcating the compact support of the solution are also described. PB Sociedade Portuguesa de Matematica SN 0032-5155 YR 1982 FD 1982 LK https://hdl.handle.net/20.500.14352/64874 UL https://hdl.handle.net/20.500.14352/64874 LA eng DS Docta Complutense RD 11 may 2025