Results 1 to 10 of about 13,570 (54)

Second-order estimates for boundary blowup solutions of special elliptic equations

open access: yesBoundary Value Problems, 2006
We find a second-order approximation of the boundary blowup solution of the equation Δu= e u | u | β−1 , with β>0 , in a bounded
doaj  

Existence result for a Kirchhoff elliptic system with variable parameters and additive right-hand side via sub- and supersolution method

open access: yesBoundary Value Problems, 2020
The paper deals with the study of the existence result for a Kirchhoff elliptic system with additive right-hand side and variable parameters by using the sub-/supersolution method. Our study is a natural extension result of our previous one in (Boulaaras
Mohamed Haiour   +3 more
doaj   +1 more source

On four-point fractional q-integrodifference boundary value problems involving separate nonlinearity and arbitrary fractional order

open access: yesBoundary Value Problems, 2018
In this paper, we study a sequential Caputo fractional q-integrodifference equation with fractional q-integral and Riemann–Liouville fractional q-derivative boundary value conditions.
Nichaphat Patanarapeelert   +1 more
doaj   +1 more source

Multiple positive solutions for quasilinear elliptic problems with combined critical Sobolev–Hardy terms

open access: yesBoundary Value Problems, 2019
In this paper, we investigate the quasilinear elliptic equations involving multiple critical Sobolev–Hardy terms with Dirichlet boundary conditions on bounded smooth domains  Ω⊂RN $\varOmega \subset R^{N}$ ( N≥3 ${N \ge 3} $), and prove the multiplicity ...
Yuanyuan Li
doaj   +1 more source

Existence of multiple positive solutions for a third-order boundary value problem with nonlocal conditions

open access: yesNonlinear Analysis, 2023
We study the existence of multiple positive solutions for a nonlinear third-order differential equation subject to various nonlocal boundary conditions.
Sergey Smirnov
doaj   +1 more source

Multiplicity results for biharmonic equations involving multiple Rellich-type potentials and critical exponents

open access: yesBoundary Value Problems, 2019
In this paper, a biharmonic equation is investigated, which involves multiple Rellich-type potentials and a critical Sobolev exponent. By using variational methods and analytical techniques, the existence and multiplicity of nontrivial solutions to the ...
Jinguo Zhang, Tsing-San Hsu
doaj   +1 more source

Global Attractors for Semilinear Parabolic Problems Involving X-Elliptic Operators

open access: yesBruno Pini Mathematical Analysis Seminar, 2015
We consider semilinear parabolic equations involving an operator that is X-elliptic with respect to a family of vector fields X with suitable properties.
Stefanie Sonner
doaj   +1 more source

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