Results 101 to 110 of about 376,175 (295)

The existence of bounded solutions of a semilinear elliptic equation

open access: yesJournal of Differential Equations, 1989
On etudie l'existence de la solution non constante bornee de l'equation differentielle ΔW-y. ⊇W/2+/W/ P−1 -W -W/(p-1)=0 dans R n , n2 avec pp c ou P c =(n+2)/(n-2) est l'exposant de l'espace de Sobolev critique pour R ...
Yuanwei Qi, Chris Budd
openaire   +2 more sources

Computation of radial solutions of semilinear equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2007
We express radial solutions of semilinear elliptic equations on $R^n$ as convergent power series in $r$, and then use Pade approximants to compute both ground state solutions, and solutions to Dirichlet problem.
Philip Korman
doaj   +1 more source

The critical semilinear elliptic equation with isolated boundary singularities [PDF]

open access: yesJ. Differential Equations 263(2017), 1907-1930, 2017
We establish quantitative asymptotic behaviors for nonnegative solutions of the critical semilinear equation $-\Delta u=u^{\frac{n+2}{n-2}}$ with isolated boundary singularities, where $n\ge 3$ is the dimension.
arxiv  

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  

Oscillatory Radial Solutions of Semilinear Elliptic Equations

open access: yesJournal of Mathematical Analysis and Applications, 1997
We study the oscillatory behavior of radial solutions of the nonlinear partial differential equation Δu + f(u) + g(|x|, u) = 0 inRn, where f and g are continuous restoring functions, uf(u) > 0 and ug(|x|, u) > 0 for u ≠ 0. We assume that for fixedq limu → 0(|f(u)|/|u|q) = B > 0, for 1 < q < n/(n − 2), and, additionally, that 2F(u) ≥ (1 − 2/n)uf(u) when
Shaohua Chen   +2 more
openaire   +2 more sources

On semilinear elliptic equations with global coupling [PDF]

open access: yesarXiv, 2008
We consider nonlinear elliptic equations which contains global coupling as a nonlinear term. We classify the existence of all possible positive solutions to this problem.
arxiv  

Diffusion versus absorption in semilinear elliptic equations

open access: yesJournal of Mathematical Analysis and Applications, 2009
AbstractWe study the limit behaviour of a sequence of singular solutions of a nonlinear elliptic equation with a strongly degenerate absorption term at the boundary of the domain. We give sharp conditions on the rate of degeneracy in terms of the distance to the boundary in order the pointwise singularity not to propagate along the boundary.
Shishkov, Andrey, Veron, Laurent
openaire   +2 more sources

Some existence results of semilinear elliptic equations [PDF]

open access: yesRendiconti di Matematica e delle Sue Applicazioni, 1995
We are concerned with the existence of positive solutions for equations of the form (1), defined in IRN and in IRN −{0}. We give a unified treatment of the problems studied before by others authors.
H. SOTO, C.S. YARUR
doaj  

Positive solutions of Robin problem for semilinear elliptic equations and a threshold result [PDF]

open access: yesarXiv, 2010
In this paper, we prove a threshold result for the Robin problem of semilinear parabolic ...
arxiv  

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