# Existence of solutions for quasilinear parabolic equations

• Apr 15th 2012, 05:16 PM
mathmai
Existence of solutions for quasilinear parabolic equations
http://ejde.math.txstate.edu/Volumes/2011/18/chen.pdf

try to enter to this link which is an article about [EXISTENCE OF SOLUTIONS FOR QUASILINEAR PARABOLIC
EQUATIONS WITH NONLOCAL BOUNDARY CONDITIONS], I have question in the page 3 section 3:
the expression:
[We need a priori estimates that permit us to extend the solution to the whole
domain [0, T].] what does it mean this expression mathematicaly?????
• Apr 16th 2012, 06:51 AM
HallsofIvy
Re: Existence of solutions for quasilinear parabolic equations
The formulas used require the assumption that " $f\in L^p(0, T;L^p(\Omega))$". The "a-priori estimates" (initial estimates of the values of f) are to make sure that f satisfies that.
• Apr 16th 2012, 02:11 PM
mathmai
Re: Existence of solutions for quasilinear parabolic equations
But the priori estimates in this articl (page 5) are all depend in u not f how this??

please tell me why u mention f here and what's the relation between these values u and f....?