Results 91 to 100 of about 238 (179)

Sub-supersolution theorems for quasilinear elliptic problems: A variational approach

open access: yesElectronic Journal of Differential Equations, 2004
This paper presents a variational approach to obtain sub - supersolution theorems for a certain type of boundary value problem for a class of quasilinear elliptic partial differential equations.
Vy Khoi Le, Klaus Schmitt
doaj  

An Agmon-Allegretto-Piepenbrink principle for Schrödinger operators. [PDF]

open access: yesRev R Acad Cienc Exactas Fis Nat A Mat, 2022
Buccheri S, Orsina L, Ponce AC.
europepmc   +1 more source

Supersolutions to degenerated logistic equation type

open access: yes, 2014
In this work we provide a method for building up a strictly positive supersolution for the steady state of a degenerated logistic equation type, i.e., when the weight function vanishes on the boundary of the domain. This degenerated system is related in obtaining the so-called large solutions.
openaire   +3 more sources

Optimal vaccination in a SIRS epidemic model. [PDF]

open access: yesEcon Theory, 2022
Federico S, Ferrari G, Torrente ML.
europepmc   +1 more source

Temporal and spatial differences in the vaginal microbiome of Chinese healthy women. [PDF]

open access: yesPeerJ, 2023
Du L   +11 more
europepmc   +1 more source

Subsolutions and supersolutions in a free boundary problem

open access: yesArkiv för Matematik, 1994
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

Existence of three positive solutions for a p-sublinear problem involving a Schrodinger p-Laplacian type operator

open access: yesElectronic Journal of Differential Equations
We prove the existence of three positive solutions for the problem $$\disolaylines{ -\Delta_p u + V (x)\varphi_p(u)=\lambda f(u),\quad x\in \Omega, \cr u(x)=0, \quad x\in \partial\Omega, } $$ where $\lambda >0$, $\Delta_p$ is the $p$-Laplacian ...
Sigifredo Herron   +2 more
doaj  

Unbounded Supersolutions of Nonlinear Equations with Nonstandard Growth

open access: yesBoundary Value Problems, 2007
We show that every weak supersolution of a variable exponent -Laplace equation is lower semicontinuous and that the singular set of such a function is of zero capacity if the exponent is logarithmically Hölder continuous.
Kinnunen Juha   +2 more
doaj  

A weak Harnack estimate for supersolutions to the porous medium equation

open access: yesDifferential and Integral Equations, 2017
In this work, we prove a weak Harnack estimate for the weak supersolutions to the porous medium equation. The proof is based on a priori estimates for the supersolutions and measure theoretical arguments.
openaire   +4 more sources

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