## Differential and Integral Equations

### Strong convergence of bounded sequences of solutions of porous medium equations

Gary M. Lieberman

#### Abstract

We show that smooth solutions of porous medium equations satisfy a simple $L^2$ gradient estimate on sets where the solution itself is small. Along with known continuity estimates for solutions and an estimate on second derivatives of smooth solutions, this estimate allows us to show that approximating smooth solutions of a porous medium equation converge strongly to the weak solution.

#### Article information

Source
Differential Integral Equations, Volume 11, Number 3 (1998), 395-407.

Dates
First available in Project Euclid: 30 April 2013