Talk:To Do List
The porous medium equation is technically a quasi-linear equation. There is now a page about semilinear equations to clarify the issue.
I see, by the way, how come Navier-Stokes is semilinear then? I was sure it was quasi until now.
---> It is the heat equation plus a first order nonlinear term.
What is currently the "Main page" should become the "Community portal", and we can use the Main page as the starting page. What do you guys think? -Nestor.