RT Journal Article T1 The one-dimensional nonlinear heat-equation with absorption: regularity of solutions and interfaces A1 Herrero, Miguel A. A1 Vázquez, Juan Luis AB We consider the equation ut=(Um)xx-λun with m>1, λ>0, n≥m as a model for heat diffusion with absorption. Hence we assume that u≥0 for xЄR, t≥0. We study the regularity of the solution to the Cauchy problem for this degenerate parabolic equation. When the initial datum uo(X)is positive only in a part of the space R, we also study the regularity of the free boundaries that appear. The asymptotic behavior of solutions and free boundaries is also discussed. PB Society for Industrial and Applied Mathematics SN 0036-1410 YR 1987 FD 1987-01 LK https://hdl.handle.net/20.500.14352/57789 UL https://hdl.handle.net/20.500.14352/57789 LA eng NO SFPI, Ministerio de Educacibn y Ciencia NO Fulbright award DS Docta Complutense RD 25 abr 2025