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Boundary regularity for strongly degenerate operators of Grushin type

open access: yesElectronic Journal of Differential Equations, 2022
We prove Harnack inequality and global regularity results for weak solutions of quasilinear degenerate equations driven by operators of Grushin type with natural growth. Degeneracy is a power of a strong A_infinity weight.
Giuseppe Di Fazio   +2 more
doaj   +6 more sources

Weighted Caffarelli–Kohn–Nirenberg type inequalities related to Grushin type operators

open access: yesAdvances in Nonlinear Analysis, 2016
We consider the Grushin type operator on ℝxd×ℝyk{\mathbb{R}^{d}_{x}\times\mathbb{R}^{k}_{y}} of the ...
Song Manli, Li Wenjuan
doaj   +2 more sources

Regularity and Exponential Growth of Pullback Attractors for Semilinear Parabolic Equations Involving the Grushin Operator [PDF]

open access: yesAbstract and Applied Analysis, 2012
Considered here is the first initial boundary value problem for a semilinear degenerate parabolic equation involving the Grushin operator in a bounded domain Ω.
Nguyen Dinh Binh
doaj   +2 more sources

Nonexistence results for hyperbolic type inequalities involving the Grushin operator in exterior domains

open access: yesElectronic Journal of Differential Equations, 2021
We study the hyperbolic type differential inequality $$ u_{tt}(t,x,y)-\mathcal{L}_\ell u(t,x,y)\geq |u(t,x,y)|^p,\quad (t,x,y)\in (0,\infty)\times D_1\times D_2 $$ under the boundary conditions $$\displaylines{ u(t,x,y) \geq f(x),\quad (t,x,y)\in (0 ...
Mohamed Jleli, Bessem Samet
doaj   +3 more sources

Bifurcation analysis for degenerate problems with mixed regime and absorption

open access: yesBulletin of Mathematical Sciences, 2021
We are concerned with the study of a bifurcation problem driven by a degenerate operator of Baouendi–Grushin type. Due to its degenerate structure, this differential operator has a mixed regime.
Ahmed Alsaedi   +2 more
doaj   +1 more source

On stable entire solutions of sub-elliptic system involving advection terms with negative exponents and weights

open access: yesJournal of Inequalities and Applications, 2020
We examine the weighted Grushin system involving advection terms given by { Δ G u − a ⋅ ∇ G u = ( 1 + ∥ z ∥ 2 ( α + 1 ) ) γ 2 ( α + 1 ) v − p in  R n , Δ G v − a ⋅ ∇ G v = ( 1 + ∥ z ∥ 2 ( α + 1 ) ) γ 2 ( α + 1 ) u − q in  R n , $$ \textstyle\begin{cases}
Belgacem Rahal
doaj   +1 more source

Infinitely many solutions to critical problems involving the p-Grushin operator

open access: yesElectronic Journal of Differential Equations
We consider a critical problem in a bounded domain involving the p-Grushin operator. After a truncation argument, we obtain infinitely many solutions to our problem via Krasnoselskii's genus, extending a previous result of Garcia Azorero and Peral Alonso
Paolo Malanchini   +2 more
doaj   +3 more sources

Stable weak solutions to weighted Kirchhoff equations of Lane–Emden type

open access: yesAdvances in Difference Equations, 2021
This paper is concerned with the Liouville type theorem for stable weak solutions to the following weighted Kirchhoff equations: − M ( ∫ R N ξ ( z ) | ∇ G u | 2 d z ) div G ( ξ ( z ) ∇ G u ) = η ( z ) | u | p − 1 u , z = ( x , y ) ∈ R N = R N 1 × R N 2 ,
Yunfeng Wei, Hongwei Yang, Hongwang Yu
doaj   +1 more source

Sobolev spaces and boundary-value problems for the curl and gradient-of-divergence operators

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2020
We study boundary value and spectral problems in a bounded domain $G$ with smooth border for operators $\operatorname{rot} +\lambda I$ and $\nabla \operatorname{div} +\lambda I$ in the Sobolev spaces. For $\lambda\neq 0$ these operators are reducible (by
Romen Semenovich Saks
doaj   +1 more source

Liouville-type theorem for Kirchhoff equations involving Grushin operators

open access: yesBoundary Value Problems, 2020
The aim of this paper is to prove the Liouville-type theorem of the following weighted Kirchhoff equations: 0.1 − M ( ∫ R N ω ( z ) | ∇ G u | 2 d z ) div G ( ω ( z ) ∇ G u ) = f ( z ) e u , z = ( x , y ) ∈ R N = R N 1 × R N 2 $$\begin{aligned} \begin ...
Yunfeng Wei, Caisheng Chen, Hongwei Yang
doaj   +1 more source

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