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In this paper, we study quasilinear parabolic equations with the nonlinearity structure modeled after the $p(x,t)$-Laplacian on nonsmooth domains. The main goal is to obtain end point Calder\'on-Zygmund type estimates in the variable…

Analysis of PDEs · Mathematics 2018-06-05 Karthik Adimurthi , Sun-Sig Byun , Jung-Tae Park

In this manuscript, we put forth a general scheme for defining initial value problems from Einstein's equations of General Relativity constrained by homogeneous and isotropic expansion. The cosmological models arising as solutions are…

General Relativity and Quantum Cosmology · Physics 2024-08-06 Leandro G. Gomes , Marcelo A. C. Nogueira , Lucas Ruiz dos Santos

In this article we prove the global existence of weak solutions to an initial boundary value problem with an exponential and p-Laplacian nonlinearity. The equation is a continuum limit of a family of kinetic Monte Carlo models of crystal…

Analysis of PDEs · Mathematics 2023-02-02 Brock C. Price , Xiangsheng Xu

We demonstrate two proofs for the local H\"older continuity of possibly sign-changing solutions to a class of doubly nonlinear parabolic equations whose prototype is \[ \partial_t\big(|u|^{q-1}u\big)-\Delta_p u=0,\quad p>2,\quad 0<q<p-1. \]…

Analysis of PDEs · Mathematics 2021-08-19 Verena Bögelein , Frank Duzaar , Naian Liao , Leah Schätzler

We consider the initial boundary value problem in exterior domain for semilinear wave equations with power-type nonlinearity |u| p. We will establish blow-up results when p is less than or equal to Strauss' exponent which is the same one…

Analysis of PDEs · Mathematics 2018-04-06 Ahmad Fino

This work is concerned with the gradient flow of absolutely $p$-homogeneous convex functionals on a Hilbert space, which we show to exhibit finite ($p<2$) or infinite extinction time ($p \geq 2$). We give upper bounds for the finite…

Analysis of PDEs · Mathematics 2020-12-25 Leon Bungert , Martin Burger

For a class of partial differential algebraic equations (PDAEs) of quasi-linear type which include nonlinear terms of convection type a possibility to determine a time and spatial index is considered. As a typical example we investigate an…

Numerical Analysis · Mathematics 2013-03-19 Wenfried Lucht , Kristian Debrabant

We consider the initial boundary value problem of a pseudo-parabolic equation with singular potential and the exponent $p(x,t)$ depending on both spatial and temporal variables. We prove the finite time blow up and estimate the upper and…

Analysis of PDEs · Mathematics 2025-12-16 Nguyen Thanh Tung , Le Xuan Truong , Tan Duc Do , Nguyen Ngoc Trong

In this paper we consider an initial boundary value problem for a semilinear parabolic equation with nonlinear nonlocal boundary condition. We prove comparison principle, the existence theorem of a local solution and study the problem of…

Analysis of PDEs · Mathematics 2014-12-17 Alexander Gladkov , Tatiana Kavitova

In this paper, we study initial boundary value problem of semilinear parabolic equations and prove that any positive solution of its steady-state problem is an initial datum threshold for the existence and nonexistence of global solution to…

Analysis of PDEs · Mathematics 2010-10-07 Qiuyi Dai , Yonggeng Gu , Fang Liu , Junhui Xie

We consider a linear second order parabolic system with a third order dispersion term. This type of system arises when considering a nonlinear model equation describing the motion of a vortex filament with axial flow immersed in an…

Analysis of PDEs · Mathematics 2012-01-04 Masashi Aiki , Tatsuo Iguchi

We consider parabolic systems with nonlinear dynamic boundary conditions, for which we give a rigorous derivation. Then, we give them several physical interpretations which includes an interpretation for the porous-medium equation, and for…

Analysis of PDEs · Mathematics 2012-10-30 Ciprian G. Gal

We are concerned with gradient estimates for solutions to a class of singular quasilinear parabolic equations with measure data, whose prototype is given by the parabolic $p$-Laplace equation $u_t-\Delta_p u=\mu$ with $p\in (1,2)$. The case…

Analysis of PDEs · Mathematics 2021-11-05 Hongjie Dong , Hanye Zhu

In this paper, we are concern with the multiplicity of solutions for a p-Laplacian problem. A weaker super-quadratic assumptions is required on the nonlinearity. Under the weaker condition we give a new proof for the infinite solutions…

Analysis of PDEs · Mathematics 2014-12-01 Jing Zeng

This paper deals with the long-time behavior of solutions of nonlinear reaction-diffusion equations describing formation of morphogen gradients, the concentration fields of molecules acting as spatial regulators of cell differentiation in…

Analysis of PDEs · Mathematics 2013-03-27 Peter V. Gordon , Cyrill B. Muratov

In this paper we consider the initial value problem for a family of shallow water equations on the line $\R$ with various asymptotic conditions at infinity. In particular we construct solutions with prescribed asymptotic expansion as…

Analysis of PDEs · Mathematics 2014-07-03 Bob McOwen , Peter Topalov

We study the well-posedness for initial boundary value problems associated with time fractional diffusion equations with non-homogenous boundary and initial values. We consider both weak and strong solutions for the problems. For weak…

Analysis of PDEs · Mathematics 2020-04-30 Yavar Kian , Masahiro Yamamoto

It is proved that the solutions to the singular stochastic $p$-Laplace equation, $p\in (1,2)$ and the solutions to the stochastic fast diffusion equation with nonlinearity parameter $r\in (0,1)$ on a bounded open domain $\Lambda\subset\R^d$…

Probability · Mathematics 2012-05-08 Ioana Ciotir , Jonas M. Tölle

In this paper, we study the initial-boundary value problem for the Poiseuille flow of hyperbolic-parabolic Ericksen-Leslie model of nematic liquid crystals in one space dimension. Due to the quasilinearity, the solution of this model in…

Analysis of PDEs · Mathematics 2023-05-25 Geng Chen , Yanbo Hu , Qingtian Zhang

A time-space fractional reaction-diffusion equation in a bounded domain is considered. Under some conditions on the initial data, we show that solutions may experience blow-up in a finite time. However, for realistic initial conditions,…

Analysis of PDEs · Mathematics 2020-04-09 Ahmed Alsaedi , Mokhtar Kirane , Berikbol T. Torebek