TY - JOUR T1 - Existence and Uniqueness of BV Solutions for the Porous Medium Equation with Dirac Measure as Sources AU - Hongjun Yuan & Yang Jin JO - Journal of Partial Differential Equations VL - 1 SP - 35 EP - 58 PY - 2005 DA - 2005/02 SN - 18 DO - http://doi.org/ UR - https://global-sci.org/intro/article_detail/jpde/5344.html KW - BV solution KW - porous medium equation KW - existence and uniqueness AB -
The aim of this paper is to discuss the existence and uniqueness of solutions for the porous medium equation u_t - (u^m)_{xx} = μ(x) in (x, t) ∈ \mathbb{R} × (0, +∞) with initial condition u(x, 0) = u_0(x) x ∈ (-∞, +∞), where μ(x) is a nonnegative finite Radon measure, u_0 ∈ L¹(\mathbb{R}) ∩ L∞(\mathbb{R}) is a nonnegative function, and m > 1, and \mathbb{R} ≡ (-∞, +∞).