Existence of extremal periodic solutions for quasilinear parabolic equations

In this paper we dulces mara candy flavors consider a quasilinear parabolic equation in a bounded domain under periodic Dirichlet boundary conditions.Our main goal is to prove the existence of extremal solutions among all solutions lying in a sector formed by appropriately defined upper and lower solutions.The main tools used in the callaway mavrik sand wedge for sale proof of our result are recently obtained abstract results on nonlinear evolution equations, comparison and truncation techniques and suitably constructed special testfunction.