English

A nonlinear parabolic problem with singular terms and nonregular data

Analysis of PDEs 2019-01-08 v1

Abstract

We study existence of nonnegative solutions to a nonlinear parabolic boundary value problem with a general singular lower order term and a nonnegative measure as nonhomogeneous datum, of the form {utΔpu=h(u)f+μin Ω×(0,T),u=0on Ω×(0,T),u=u0in Ω×{0}, \begin{cases} \displaystyle u_t - \Delta_p u = h(u)f+\mu & \text{in}\ \Omega \times (0,T),\\ u=0 &\text{on}\ \partial\Omega \times (0,T),\\ u=u_0 &\text{in}\ \Omega \times \{0\}, \end{cases} where Ω\Omega is an open bounded subset of RN\mathbb{R}^N (N2N\ge2), u0u_0 is a nonnegative integrable function, Δp\Delta_p is the pp-laplace operator, μ\mu is a nonnegative bounded Radon measure on Ω×(0,T)\Omega \times (0,T) and ff is a nonnegative function of L1(Ω×(0,T))L^1(\Omega \times (0,T)). The term hh is a positive continuous function possibly blowing up at the origin. Furthermore, we show uniqueness of finite energy solutions in presence of a nonincreasing hh.

Keywords

Cite

@article{arxiv.1901.01545,
  title  = {A nonlinear parabolic problem with singular terms and nonregular data},
  author = {Francescantonio Oliva and Francesco Petitta},
  journal= {arXiv preprint arXiv:1901.01545},
  year   = {2019}
}
R2 v1 2026-06-23T07:04:06.813Z