[BOOK][B] Partial differential equations in anisotropic Musielak-Orlicz spaces

Anisotropic and inhomogeneous spaces, which are at the core of the present study, may
appear exotic at first. However, the reader should abandon this impression once they realize …

A pocket guide to nonlinear differential equations in Musielak–Orlicz spaces

I Chlebicka - Nonlinear Analysis, 2018 - Elsevier
Abstract The Musielak–Orlicz setting unifies variable exponent, Orlicz, weighted Sobolev,
and double-phase spaces. They inherit technical difficulties resulting from general growth …

[HTML][HTML] Gossez's approximation theorems in Musielak–Orlicz–Sobolev spaces

Y Ahmida, I Chlebicka, P Gwiazda, A Youssfi - Journal of Functional …, 2018 - Elsevier
We prove the density of smooth functions in the modular topology in Musielak–Orlicz–
Sobolev spaces essentially extending the results of Gossez [17] obtained in the Orlicz …

Hölder regularity of quasiminimizers under generalized growth conditions

P Harjulehto, P Hästö, O Toivanen - Calculus of Variations and Partial …, 2017 - Springer
We prove Harnack's inequality for local (quasi) minimizers in generalized Orlicz spaces
without polynomial growth or coercivity conditions. As a consequence, we obtain the local …

[HTML][HTML] Existence of renormalized solutions to elliptic equation in Musielak–Orlicz space

P Gwiazda, I Skrzypczak… - Journal of Differential …, 2018 - Elsevier
We prove existence of renormalized solutions to general nonlinear elliptic equation in
Musielak–Orlicz space avoiding growth restrictions. Namely, we consider− div A (x,∇ u)= f∈ …

Entropy and renormalized solutions to the general nonlinear elliptic equations in Musielak–Orlicz spaces

Y Li, F Yao, S Zhou - Nonlinear Analysis: Real World Applications, 2021 - Elsevier
In this paper we mainly prove the existence and uniqueness of entropy solutions and the
uniqueness of renormalized solutions to the general nonlinear elliptic equations in Musielak …

Fully anisotropic elliptic problems with minimally integrable data

A Alberico, I Chlebicka, A Cianchi… - Calculus of Variations …, 2019 - Springer
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 Δ _2 …

[HTML][HTML] Parabolic equation in time and space dependent anisotropic Musielak–Orlicz spaces in absence of Lavrentiev's phenomenon

I Chlebicka, P Gwiazda… - Annales de l'Institut Henri …, 2019 - Elsevier
We study a general nonlinear parabolic equation on a Lipschitz bounded domain in RN,{∂
tu− div A (t, x,∇ u)= f (t, x) in Ω T, u (t, x)= 0 on (0, T)×∂ Ω, u (0, x)= u 0 (x) in Ω, with f∈ L∞(Ω …

Measure data elliptic problems with generalized Orlicz growth

I Chlebicka - Proceedings of the Royal Society of Edinburgh Section …, 2023 - cambridge.org
We study nonlinear measure data elliptic problems involving the operator of generalized
Orlicz growth. Our framework embraces reflexive Orlicz spaces, as well as natural variants of …

[HTML][HTML] Well-posedness of parabolic equations in the non-reflexive and anisotropic Musielak–Orlicz spaces in the class of renormalized solutions

I Chlebicka, P Gwiazda, A Zatorska-Goldstein - Journal of Differential …, 2018 - Elsevier
We prove existence and uniqueness of renormalized solutions to general nonlinear
parabolic equation in Musielak–Orlicz space avoiding growth restrictions. Namely, we …