Results 31 to 40 of about 1,041 (107)

DYNAMICS OF GLOBAL ATTRACTOR FOR A SEMILINEAR DEGENERATE PARABOLIC EQUATION INVOLVING GRUSHIN OPERATORS

open access: yesDynamic systems and applications, 2018
In this paper we study the dynamics of global attractor of a semilinear parabolic equation involving Grushin operators. First we show that the global attractor is bounded in L(Ω) and D(A).
Jihoon Lee
semanticscholar   +1 more source

Extremal metrics for Laplace eigenvalues in perturbed conformal classes on products [PDF]

open access: yes, 2019
In this short note, we prove that conformal classes which are small perturbations of a product conformal class on a product with a standard sphere admit a metric extremal for some Laplace eigenvalue. As part of the arguments, we obtain perturbed harmonic
Matthiesen, H.
core   +2 more sources

Existence of solutions for a class of degenerate quasilinear elliptic equation in RN with vanishing potentials

open access: yes, 2013
We establish the existence of positive solution for the following class of degenerate quasilinear elliptic problem (P){−Luap+V(x)|x|−ap∗|u|p−2u=f(u)in RN,u>0in RN;u∈Da1,p(RN), where −Luap=−div(|x|−ap|∇u|p−2∇u ...
W. D. Bastos, O. Miyagaki, R. S. Vieira
semanticscholar   +1 more source

Existence results for nonlinear degenerate elliptic equations with lower order terms

open access: yesAdvances in Nonlinear Analysis, 2020
In this paper, we prove the existence and regularity of solutions of the homogeneous Dirichlet initial-boundary value problem for a class of degenerate elliptic equations with lower order terms. The results we obtained here, extend some existing ones of [
Zou Weilin, Li Xinxin
doaj   +1 more source

Large solutions of a class of degenerate equations associated with infinity Laplacian

open access: yesAdvanced Nonlinear Studies, 2022
In this article, we investigate the boundary blow-up problem Δ∞hu=f(x,u),inΩ,u=∞,on∂Ω,\left\{\begin{array}{ll}{\Delta }_{\infty }^{h}u=f\left(x,u),& {\rm{in}}\hspace{0.33em}\Omega ,\\ u=\infty ,& {\rm{on}}\hspace{0.33em}\partial \Omega ,\end{array}\right.
Li Cuicui, Liu Fang
doaj   +1 more source

On the existence threshold for positive solutions of p-laplacian equations with a concave-convex nonlinearity

open access: yes, 2014
We study the following boundary value problem with a concave-convex nonlinearity: \begin{equation*} \left\{ \begin{array}{r c l l} -\Delta_p u & = & \Lambda\,u^{q-1}+ u^{r-1} & \textrm{in }\Omega, \\ u & = & 0 & \textrm{on }\partial\Omega.
Birindelli I.   +5 more
core   +2 more sources

Optimal Lipschitz criteria and local estimates for non-uniformly elliptic problems [PDF]

open access: yes, 2018
We report on new techniques and results in the regularity theory of general non-uniformly elliptic variational integrals. By means of a new potential theoretic approach we reproduce, in the non-uniformly elliptic setting, the optimal criteria for ...
Beck, Lisa, Mingione, Giuseppe
core   +2 more sources

Comments on behaviour of solutions of elliptic quasi-linear problems in a neighbourhood of boundary singularities

open access: yesOpen Mathematics, 2017
We have investigated the behaviour of solutions of elliptic quasi-linear problems in a neighbourhood of boundary singularities in bounded and unbounded domains. We found exponents of the solution’s decreasing rate near the boundary singularities.
Bodzioch Mariusz   +2 more
doaj   +1 more source

From Sobolev Inequality to Doubling [PDF]

open access: yes, 2014
In various analytical contexts, it is proved that a weak Sobolev inequality implies a doubling property for the underlying ...
Korobenko, Lyudmila   +2 more
core   +1 more source

Anisotropic problems with unbalanced growth

open access: yesAdvances in Nonlinear Analysis, 2020
The main purpose of this paper is to study a general class of (p, q)-type eigenvalues problems with lack of compactness. The reaction is a convex-concave nonlinearity described by power-type terms.
Alsaedi Ahmed, Ahmad Bashir
doaj   +1 more source

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