Results 1 to 10 of about 113 (22)

Generalized transition fronts for one-dimensional almost periodic Fisher-KPP equations [PDF]

open access: yes, 2016
This paper investigates the existence of generalized transition fronts for Fisher-KPP equations in one-dimensional, almost periodic media. Assuming that the linearized elliptic operator near the unstable steady state admits an almost periodic ...
Nadin, Grégoire, Rossi, Luca
core   +5 more sources

Front blocking and propagation in cylinders with varying cross section [PDF]

open access: yes, 2015
In this paper we consider a bistable reaction-diffusion equation in unbounded domains and we investigate the existence of propagation phenomena, possibly partial, in some direction or, on the contrary, of blocking phenomena.
Berestycki, Henri   +2 more
core   +5 more sources

Plane-like minimizers for a non-local Ginzburg-Landau-type energy in a periodic medium [PDF]

open access: yes, 2017
We consider a non-local phase transition equation set in a periodic medium and we construct solutions whose interface stays in a slab of prescribed direction and universal width.
Cozzi, Matteo, Valdinoci, Enrico
core   +3 more sources

Existence of stable solutions to $(-\Delta)^m u=e^u$ in $\mathbb{R}^N$ with $m \geq 3$ and $N > 2m$

open access: yes, 2015
We consider the polyharmonic equation $(-\Delta)^m u=e^u$ in $\mathbb{R}^N$ with $m \geq 3$ and $N > 2m$. We prove the existence of many entire stable solutions.
Huang, Xia, Ye, Dong
core   +2 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 L≡1.
Andriy Bandura   +2 more
core   +1 more source

Remarks on two fourth order elliptic problems in whole space

open access: yes, 2014
We are interested in entire solutions for the semilinear biharmonic equation $\Delta^{2}u=f(u)$ in $\R^N$, where $f(u)=e^{u}$ or $-u^{-p}\ (p>0)$. For the exponential case, we prove that any classical entire solution verifies $-\Delta u>0$ without any ...
Lai, Baishun, Ye, Dong
core   +3 more sources

Uniqueness and Liouville type results for radial solutions of some classes of k-Hessian equations [PDF]

open access: yes, 2022
We establish a uniqueness theorem and a Liouville type result for positive radial solutions of some classes of nonlinear autonomous equation with the k-Hessian operator. We also give some interesting qualitative properties of solutions.
Chrouda Mohamed Ben
core  

On s-harmonic functions on cones [PDF]

open access: yes, 2019
We deal with non negative functions which are s-harmonic on a given cone of the n-dimensional Euclidean space with vertex at zero, vanishing on the complementary.
Vita, Stefano
core   +2 more sources

Multidimensional entire solutions for an elliptic system modelling phase separation

open access: yes, 2016
For the system of semilinear elliptic equations \[ \Delta V_i = V_i \sum_{j \neq i} V_j^2, \qquad V_i > 0 \qquad \text{in $\mathbb{R}^N$} \] we devise a new method to construct entire solutions.
Soave, Nicola, Zilio, Alessandro
core   +1 more source

A two end family of solutions for the Inhomogeneous Allen-Cahn equation in R^2

open access: yes, 2013
In this work we construct a family of entire bounded solution for the singulary perturbed Inhomogeneous Allen-Cahn Equation $\ep^2\div\left(a(x)\nabla u\right)-a(x)F'(u)=0$ in $\R^2$, where $\ep\to 0$.
Agudelo, Oscar, Zuniga, Andres
core   +2 more sources

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