Regularity of Weak Solutions for Nonlinear Parabolic Problem with p(x)-Growth

نویسندگان

  • Yongqiang Fu
  • Mingqi Xiang
  • Ning Pan
چکیده

In this paper, we study the nonlinear parabolic problem with p(x)growth conditions in the space W L(Q), and give a regularity theorem of weak solutions for the following equation ∂u ∂t + A(u) = 0 where A(u) = −diva(x, t, u,∇u) + a0(x, t, u,∇u), a(x, t, u,∇u) and a0(x, t, u,∇u) satisfy p(x)-growth conditions with respect to u and ∇u.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Uniqueness and comparison theorems for solutions of doubly nonlinear parabolic equations with nonstandard growth conditions

The paper addresses the Dirichlet problem for the doubly nonlinear parabolic equation with nonstandard growth conditions: ut = div (a(x, t, u)|u|�(x, t)|�u|p(x, t)-2 with given variable exponents �(x, t) and p(x, t). We establish conditions on the data which guarantee the comparison principle and uniqueness of bounded weak solutions in suitable function spaces of Orlicz-Sobolev type. DOI: https...

متن کامل

Viscosity Solutions to Degenerate Diffusion Problems

This paper concerns the weak solutions to a Cauchy problem in RN for a degenerate nonlinear parabolic equation. We obtain the Hölder regularity of the weak solutions to this problem.

متن کامل

Local Regularity Results for Some Parabolic Equations

In this paper we prove the local L s regularity (where s depends on the summability of the data) for local " unbounded " weak solutions of a class of nonlinear parabolic equations including the p-Laplacian equation.

متن کامل

Regularity of Weak Solutions of the Nonlinear Fokker-planck Equation1

We study regularity properties of weak solutions of the degenerate parabolic equation ut + f(u)x = K(u)xx, where Q(u) := K ′(u) > 0 for all u 6= 0 and Q(0) = 0 (e.g., the porous media equation, K(u) = |u|m−1u, m > 1). We show that whenever the solution u is nonnegative, Q(u(·, t)) is uniformly Lipschitz continuous and K(u(·, t)) is C-smooth and note that these global regularity results are opti...

متن کامل

Solute Transport in Porous Media with Equilibrium and Non{equilibrium Multiple{site Adsorption: Uniqueness of Weak Solutions

We consider a nonlinear degenerate parabolic or nonlinear hyperbolic system arising from porous media ow modelling. We prove an L 1-contraction principle and uniqueness for weak solutions without any further regularity assumptions.

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2012