Results 1 to 10 of about 43 (43)

Fractional parabolic problems with a nonlocal initial condition

open access: yesMoroccan Journal of Pure and Applied Analysis, 2017
In this work we will consider a class of non local parabolic problems with nonlocal initial condition, more precisely we deal with the ...
Abdellaoui B.   +2 more
doaj   +1 more source

Lack of smoothing for bounded solutions of a semilinear parabolic equation

open access: yesAdvances in Nonlinear Analysis, 2020
We study a semilinear parabolic equation that possesses global bounded weak solutions whose gradient has a singularity in the interior of the domain for all t > 0.
Fila Marek, Lankeit Johannes
doaj   +1 more source

A Liouville comparison principle for solutions of semilinear parabolic inequalities in the whole space

open access: yesAdvances in Nonlinear Analysis, 2014
We obtain a new Liouville comparison principle for weak solutions (u,v) of semilinear parabolic second-order partial differential inequalities of the form ut-ℒu-|u|q-1u≥vt-ℒv-|v|q-1v(*)$u_t -{\mathcal {L}}u- |u|^{q-1}u\ge v_t -{\mathcal {L}}v- |v|^{q-1}v\
Kurta Vasilii V.
doaj   +1 more source

Hypercontractivity, supercontractivity, ultraboundedness and stability in semilinear problems

open access: yesAdvances in Nonlinear Analysis, 2017
We study the Cauchy problem associated to a family of nonautonomous semilinear equations in the space of bounded and continuous functions over ℝd{\mathbb{R}^{d}} and in Lp{L^{p}}-spaces with respect to tight evolution systems of measures.
Addona Davide   +2 more
doaj   +1 more source

A concrete realization of the slow-fast alternative for a semilinear heat equation with homogeneous Neumann boundary conditions

open access: yesAdvances in Nonlinear Analysis, 2018
We investigate the asymptotic behavior of solutions to a semilinear heat equation with homogeneous Neumann boundary conditions. It was recently shown that the nontrivial kernel of the linear part leads to the coexistence of fast solutions decaying to 0 ...
Ghisi Marina   +2 more
doaj   +1 more source

Sliding methods for dual fractional nonlinear divergence type parabolic equations and the Gibbons’ conjecture

open access: yesAdvanced Nonlinear Studies
In this paper, we consider the general dual fractional parabolic problem ∂tαu(x,t)+Lu(x,t)=f(t,u(x,t))inRn×R. ${\partial }_{t}^{\alpha }u\left(x,t\right)+\mathcal{L}u\left(x,t\right)=f\left(t,u\left(x,t\right)\right) \text{in} {\mathbb{R}}^{n}{\times ...
Guo Yahong, Ma Lingwei, Zhang Zhenqiu
doaj   +1 more source

Continuous in time bubble decomposition for the harmonic map heat flow

open access: yesForum of Mathematics, Pi
We consider the harmonic map heat flow for maps $\mathbb {R}^{2} \to \mathbb {S}^2$ . It is known that solutions to the initial value problem exhibit bubbling along a well-chosen sequence of times.
Jacek Jendrej   +2 more
doaj   +1 more source

Global existence and finite-time blowup for a mixed pseudo-parabolic r(x)-Laplacian equation

open access: yesAdvances in Nonlinear Analysis
This article is devoted to the study of the initial boundary value problem for a mixed pseudo-parabolic r(x)r\left(x)-Laplacian-type equation. First, by employing the imbedding theorems, the theory of potential wells, and the Galerkin method, we ...
Cheng Jiazhuo, Wang Qiru
doaj   +1 more source

Monotonicity of solutions for parabolic equations involving nonlocal Monge-Ampère operator

open access: yesAdvances in Nonlinear Analysis
In this article, we consider the parabolic equations with nonlocal Monge-Ampère operators ∂u∂t(x,t)−Dsθu(x,t)=f(u(x,t)),(x,t)∈R+n×R.\frac{\partial u}{\partial t}\left(x,t)-{D}_{s}^{\theta }u\left(x,t)=f\left(u\left(x,t)),\hspace{1.0em}\left(x,t)\in ...
Du Guangwei, Wang Xinjing
doaj   +1 more source

A Liouville theorem for superlinear parabolic equations on the Heisenberg group

open access: yesAdvanced Nonlinear Studies
We consider a parabolic nonlinear equation on the Heisenberg group. Applying the Gidas–Spruck type estimates, we prove that under suitable conditions, the equation does not have positive solutions. As an application of the nonexistence result, we provide
Wei Juncheng, Wu Ke
doaj   +1 more source

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