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We study solutions to measure data elliptic systems with Uhlenbeck-type structure that involve operator of divergence form, depending continuously on the spacial variable, and exposing doubling Orlicz growth with respect to the second…

Analysis of PDEs · Mathematics 2021-02-19 Iwona Chlebicka , Yeonghun Youn , Anna Zatorska-Goldstein

We investigate solutions to nonlinear elliptic Dirichlet problems of the type \[ \left\{\begin{array}{cl} - {\rm div} A(x,u,\nabla u)= \mu &\qquad \mathrm{ in}\qquad \Omega, u=0 &\qquad \mathrm{ on}\qquad \partial\Omega, \end{array}\right.…

Analysis of PDEs · Mathematics 2018-08-03 Iwona Chlebicka , Flavia Giannetti , Anna Zatorska-Goldstein

We investigate nonlinear elliptic Dirichlet problems whose growth is driven by a general anisotropic $N$-function, which is not necessarily of power type and need not satisfy the $\Delta_2$ nor the $\nabla _2$-condition. Fully anisotropic,…

Analysis of PDEs · Mathematics 2019-03-05 Angela Alberico , Iwona Chlebicka , Andrea Cianchi , Anna Zatorska-Goldstein

This paper investigates elliptic obstacle problems with generalized Orlicz growth involving measure data, which includes Orlicz growth, variable exponent growth, and double-phase growth as specific cases of this setting. First, we establish…

Analysis of PDEs · Mathematics 2025-05-21 Qi Xiong , Xing Fu

Boundary value problems for a class of quasilinear elliptic equations, with an Orlicz type growth and L^1 right-hand side are considered. Both Dirichlet and Neumann problems are contemplated. Existence and uniqueness of generalized…

Analysis of PDEs · Mathematics 2017-08-25 Andrea Cianchi , Vladimir Maz'ya

We study a general nonlinear elliptic equation in the Orlicz setting with data not belonging to the dual of the energy space. We provide several Lorentz-type and Morrey-type estimates for the gradients of solutions under various conditions…

Analysis of PDEs · Mathematics 2019-05-14 Iwona Chlebicka

We establish pointwise estimates expressed in terms of a nonlinear potential of a generalized Wolff type for $A$-superharmonic functions with nonlinear operator $A:\Omega\times\mathbb{R}^n\to\mathbb{R}^n$ having measurable dependence on the…

Analysis of PDEs · Mathematics 2020-06-26 Iwona Chlebicka , Flavia Giannetti , Anna Zatorska-Goldstein

Studying elliptic measure data problem with strongly nonlinear operator whose growth is described by the means of fully anisotropic $N$-function, we prove the uniqueness for a broad class of measures. In order to provide it, the framework…

Analysis of PDEs · Mathematics 2020-08-06 Iwona Chlebicka , Piotr Nayar

We study the well-posedness of solutions to the general nonlinear parabolic equations with merely integrable data in time-dependent Musielak-Orlicz spaces. With the help of a density argument, we establish the existence and uniqueness of…

Analysis of PDEs · Mathematics 2024-11-05 Ying Li , Chao Zhang

We study the gradient regularity of solutions to measure data elliptic systems with Uhlenbeck-type structure and Orlicz growth. For any bounded Borel measure, pointwise estimates for the gradient of solutions are provided in terms of the…

Analysis of PDEs · Mathematics 2023-07-31 Iwona Chlebicka , Minhyun Kim , Marvin Weidner

Anisotropic elliptic equations of the second order with variable exponents in nonlinearities and the right-hand side as a diffuse measure are considered in the space $\mathbb{R}^n$. The existence of an entropy solution in anisotropic…

Analysis of PDEs · Mathematics 2020-01-01 L. M. Kozhevnikova

We characterize, in the terms of intrinsic Hausdorff measures, the size of~removable sets for H\"older continuous solutions to elliptic equations with Musielak-Orlicz growth. In the general case we provide an elegant form of the measure…

Analysis of PDEs · Mathematics 2020-01-27 Iwona Chlebicka , Arttu Karppinen

We prove existence of renormalized solutions to general nonlinear elliptic equation in Musielak-Orlicz space avoiding growth restrictions. Namely, we consider \begin{equation*} -{\rm div} A(x,\nabla u)= f\in L^1(\Omega), \end{equation*} on…

Analysis of PDEs · Mathematics 2019-05-14 Piotr Gwiazda , Iwona Skrzypczak , Anna Zatorska-Goldstein

In this paper, we study a second-order, nonlinear evolution equation with damping arising in elastodynamics. The nonlinear term is monotone and possesses a convex potential but exhibits anisotropic and nonpolynomial growth. The appropriate…

Analysis of PDEs · Mathematics 2018-04-11 Adrian Montgomery Ruf

We establish gradient estimates of solutions to a class of nonlinear elliptic equations with measure data under Orlicz-type growth conditions. The growth is governed by the structural condition \[ 0<i_a\le t g'(t)/g(t)\le s_a<1. \] We…

Analysis of PDEs · Mathematics 2026-03-11 Ying Li , Chao Zhang

Under various conditions on the data we analyse how appearence of lower order terms affects the gradient estimates on solutions to a general nonlinear elliptic equation of the form \[-{\rm div}\, a(x,Du)+b(x,u)=\mu\] with data $\mu$ not…

Analysis of PDEs · Mathematics 2019-02-15 Iwona Chlebicka

We study the existence of very weak solutions to a system \[\begin{cases}-\mathrm{div} \mathcal{A}(x,D\mathbf{u})=\mathbf{\mu}\quad\text{in }\ \Omega, \mathbf{u}=0\quad\text{on }\ \partial\Omega\end{cases} \] with a datum $\mathbf{\mu}$…

Analysis of PDEs · Mathematics 2024-07-16 Iwona Chlebicka , Yeonghun Youn , Anna Zatorska-Goldstein

Motivated by the image denoising problem and the undesirable stair-casing effect of the total variation method, we introduce bounded variation spaces with generalized Orlicz growth. Our setup covers earlier variable exponent and double…

Functional Analysis · Mathematics 2025-04-22 Michela Eleuteri , Petteri Harjulehto , Peter Hästö

We study asymptotic behavior of sub-solutions to non-uniformly elliptic equations with nonstandard growth. In particular, Harnack type inequalities are proved. Our approach gives new results for the cases with (p,q) nonlinearity and…

Analysis of PDEs · Mathematics 2022-08-12 O. V. Hadzhy , M. O. Savchenko , I. I. Skrypnik , M. V. Voitovych

We establish sufficient conditions for the local boundedness of weak solutions to a broad class of nonlinear elliptic equations in divergence form, under unbalanced growth conditions on the stress field. Our analysis is carried out in a…

Analysis of PDEs · Mathematics 2025-12-02 Gabriele Giannone
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