Results 1 to 10 of about 135 (38)

Remarks on two fourth order elliptic problems in whole space [PDF]

open access: yes, 2014
We are interested in entire solutions for the semilinear biharmonic equation ∆u = f(u) in R , where f(u) = e or −u (p > 0). For the exponential case, we prove that for the polyharmonic problem ∆u = e with positive integer m, any classical entire solution
Baishun Lai, D. Ye
semanticscholar   +5 more sources

Properties of entire solutions of some linear PDE's [PDF]

open access: yes, 2017
In this paper, there are improved sufficient conditions of boundedness of the L-index in a direction for entire solutions of some linear partial differential equations. They are new even for the one-dimensional case and 1.
Andriy Ivanovych Bandura   +2 more
semanticscholar   +2 more sources

Singular quasilinear convective elliptic systems in ℝN

open access: yesAdvances in Nonlinear Analysis, 2022
The existence of a positive entire weak solution to a singular quasi-linear elliptic system with convection terms is established, chiefly through perturbation techniques, fixed point arguments, and a priori estimates.
Guarnotta Umberto   +2 more
doaj   +1 more source

Sharp Liouville Theorems

open access: yesAdvanced Nonlinear Studies, 2021
Consider the equation div⁡(φ2⁢∇⁡σ)=0{\operatorname{div}(\varphi^{2}\nabla\sigma)=0} in ℝN{\mathbb{R}^{N}}, where φ>0{\varphi>0}. Berestycki, Caffarelli and Nirenberg proved in [H. Berestycki, L. Caffarelli and L. Nirenberg, Further qualitative properties
Villegas Salvador
doaj   +1 more source

(p,Q) systems with critical singular exponential nonlinearities in the Heisenberg group

open access: yesOpen Mathematics, 2020
The paper deals with the existence of solutions for (p,Q)(p,Q) coupled elliptic systems in the Heisenberg group, with critical exponential growth at infinity and singular behavior at the origin.
Pucci Patrizia, Temperini Letizia
doaj   +1 more source

On Removable Singularities of Solutions of Higher-Order Differential Inequalities

open access: yesAdvanced Nonlinear Studies, 2020
We obtain sufficient conditions for solutions of the mth-order differential ...
Kon’kov A. A., Shishkov A. E.
doaj   +1 more source

Global existence and nonexistence of solutions for quasilinear parabolic equation

open access: yesBoundary Value Problems, 2014
This work is concerned with the global existence and nonexistence of solutions for a quasilinear parabolic equation with null Dirichlet boundary condition.
Xianghui Xu, Yong-Hoon Lee, Z. Fang
semanticscholar   +1 more source

A Liouville comparison principle for solutions of quasilinear singular parabolic inequalities

open access: yesAdvances in Nonlinear Analysis, 2015
We obtain a Liouville comparison principle for entire weak solutions (u,v) of quasilinear singular parabolic second-order partial differential inequalities of the form ut-A(u)-|u|q-1u≥vt-A(v)-|v|q-1v${ u_t - A(u)-|u|^{q-1}u \ge v_t - A (v)-|v|^{q-1}v ...
Kurta Vasilii V.
doaj   +1 more source

A Liouville-Type Theorem for an Elliptic Equation with Superquadratic Growth in the Gradient

open access: yesAdvanced Nonlinear Studies, 2020
We consider the elliptic equation -Δ⁢u=uq⁢|∇⁡u|p{-\Delta u=u^{q}|\nabla u|^{p}} in ℝn{\mathbb{R}^{n}} for any p>2{p>2} and q>0{q>0}. We prove a Liouville-type theorem, which asserts that any positive bounded solution is constant.
Filippucci Roberta   +2 more
doaj   +1 more source

Liouville type theorem for higher order Hardy-Hénon system of inequalities

open access: yes, 2014
In this paper, we prove some new Liouville type theorems for fourth order and more general higher order Hardy-Henon systems of inequalities. The test function method is applied to show the nonexistence of nontrivial nonnegative global solutions, which ...
Lihua Min
semanticscholar   +1 more source

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