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20112026
most citedRobin fractional problems with symmetric variable growth

25 citations · 65 across the 40 of their papers we have counts for

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49 papers · 1 filter

math.AP2026

Hölder regularity for logarithmic double phase problems

Ky Ho, Yun-Ho Kim, Patrick Winkert

We investigate boundedness and regularity properties of weak solutions to a class of generalized logarithmic double phase equations with variable exponents. The considered operator…

math.AP2026

Mixed double phase equations with local and nonlocal operators

Anupma Arora, Shilpa Gupta, Patrick Winkert

In this paper, we study a new class of mixed double phase problems that combine local and nonlocal operators. We consider two different models. The first model is driven by the fra…

math.AP2025

Critical double phase problems involving sandwich-type nonlinearities

Csaba Farkas, Alessio Fiscella, Ky Ho +1

In this paper we study problems with critical and sandwich-type growth represented by \begin{align*} -\operatorname{div}\Big(|\nabla u|^{p-2}\nabla u + a(x)|\nabla u|^{q-2}\nabla u…

math.AP2025

Logarithmic double phase problems with generalized critical growth

Rakesh Arora, Ángel Crespo-Blanco, Patrick Winkert

In this paper we study logarithmic double phase problems with variable exponents involving nonlinearities that have generalized critical growth. We first prove new continuous and c…

math.AP2024

Degenerate singular Kirchhoff problems in Musielak-Orlicz spaces

Umberto Guarnotta, Patrick Winkert

In this paper we study quasilinear elliptic Kirchhoff equations driven by a non-homogeneous operator with unbalanced growth and right-hand sides that consist of sub-linear, possibl…

math.AP2024

Double phase problems with variable exponents depending on the solution and the gradient in the whole space

Ala Eddine Bahrouni, Anouar Bahrouni, Patrick Winkert

In this paper, we establish continuous and compact embeddings for a new class of Musielak-Orlicz Sobolev spaces in unbounded domains driven by a double phase operator with variable…

math.AP2024★ 1 cited

On singularly perturbed -Laplace Schrödinger equation with logarithmic nonlinearity

Deepak Kumar Mahanta, Tuhina Mukherjee, Patrick Winkert

This article focuses on the study of the existence, multiplicity and concentration behavior of ground states as well as the qualitative aspects of positive solutions for a …

math.AP2024

Degenerate Kirchhoff problems with nonlinear Neumann boundary condition

Franziska Borer, Marcos T. O. Pimenta, Patrick Winkert

In this paper we consider degenerate Kirchhoff-type equations of the form \[-ϕ(Ξ(u)) \left(\mathcal{A}(u)-|u|^{p-2}u\right) = f(x,u)\quad \text{in } Ω,\] \[\phantom{aaiaaaaaaaaa}ϕ(…

math.AP2024

Elliptic -Laplacian systems with nonlinear boundary condition

Franziska Borer, Siegfried Carl, Patrick Winkert

In this paper we study quasilinear elliptic systems given by \begin{equation*} \begin{aligned} -Δ_{p_1}u_1 & =-|u_1|^{p_1-2}u_1 \quad && \text{in } Ω,\newline -Δ_{p_2}u_2 & =-|u_2|…

math.AP2023

Least energy sign-changing solution for degenerate Kirchhoff double phase problems

Ángel Crespo-Blanco, Leszek Gasiński, Patrick Winkert

In this paper we study the following nonlocal Dirichlet equation of double phase type \begin{align*} -ψ\left [ \int_Ω\left ( \frac{|\nabla u |^p}{p} + μ(x) \frac{|\nabla u|^q}{q}\r…

math.AP2023★ 1 cited

On logarithmic double phase problems

Rakesh Arora, Ángel Crespo-Blanco, Patrick Winkert

In this paper we introduce a new logarithmic double phase type operator of the form\begin{align*}\mathcal{G}u:=-\operatorname{div}\left(|\nabla u|^{p(x)-2}\nabla u+μ(x)\left[\log(e…

math.AP2023★ 1 cited

Superlinear elliptic equations with unbalanced growth and nonlinear boundary condition

Eleonora Amoroso, Ángel Crespo-Blanco, Patrizia Pucci +1

In this paper we first introduce an innovative equivalent norm in the Musielak-Orlicz Sobolev spaces in a very general setting and we then present a new result on the boundedness o…

math.AP2022★ 1 cited

Nehari manifold approach for superlinear double phase problems with variable exponents

Ángel Crespo-Blanco, Patrick Winkert

In this paper we consider quasilinear elliptic equations driven by the variable exponent double phase operator with superlinear right-hand sides. Under very general assumptions on…

math.AP2022

Existence of ground state solutions for a Choquard double phase problem

Rakesh Arora, Alessio Fiscella, Tuhina Mukherjee +1

In this paper we study quasilinear elliptic equations driven by the double phase operator involving a Choquard term of the form \begin{align*} -\mathcal{L}_{p,q}^{a}(u) + |u|^{p-2}…

math.AP2022

Infinitely many solutions to Kirchhoff double phase problems with variable exponents

Ky Ho, Patrick Winkert

In this work we deal with elliptic equations driven by the variable exponent double phase operator with a Kirchhoff term and a right-hand side that is just locally defined in terms…

math.AP2022★ 1 cited

The sub-supersolution method for variable exponent double phase systems with nonlinear boundary conditions

Umberto Guarnotta, Roberto Livrea, Patrick Winkert

In this paper we study quasilinear elliptic systems driven by variable exponent double phase operators involving fully coupled right-hand sides and nonlinear boundary conditions. T…

math.AP2022★ 3 cited

New embedding results for double phase problems with variable exponents and a priori bounds for corresponding generalized double phase problems

Ky Ho, Patrick Winkert

In this paper we present new embedding results for Musielak-Orlicz Sobolev spaces of double phase type. Based on the continuous embedding of into $L^{\mathca…

math.AP2022

Multi-valued variational inequalities for variable exponent double phase problems: comparison and extremality results

Siegfried Carl, Vy Khoi Le, Patrick Winkert

We prove existence and comparison results for multi-valued variational inequalities in a bounded domain of the form \begin{equation*} u\in K\,:\, 0 \in Au+\partial I_K(u)+\math…

math.AP2021

On double phase Kirchhoff problems with singular nonlinearity

Rakesh Arora, Alessio Fiscella, Tuhina Mukherjee +1

In this paper, we study multiplicity results for double phase problems of Kirchhoff type with right-hand sides that include a parametric singular term and a nonlinear term of subcr…

math.AP2021

Double phase implicit obstacle problems with convection and multivalued mixed boundary value conditions

Shengda Zeng, Vicenţiu D. Rădulescu, Patrick Winkert

In this paper we consider a mixed boundary value problem with a nonhomogeneous, nonlinear differential operator (called double phase operator), a nonlinear convection term (a react…

math.AP2021

On a class of critical double phase problems

Csaba Farkas, Alessio Fiscella, Patrick Winkert

In this paper we study a class of double phase problems involving critical growth, namely $-\text{div}\big(|\nabla u|^{p-2} \nabla u+ μ(x) |\nabla u|^{q-2} \nabla u\big)=λ|u|^{\var…

math.AP2021★ 22 cited

Parametric superlinear double phase problems with singular term and critical growth on the boundary

Ángel Crespo-Blanco, Nikolaos S. Papageorgiou, Patrick Winkert

In this paper we study quasilinear elliptic equations driven by the double phase operator along with a reaction that has a singular and a parametric superlinear term and with a non…

math.AP2021

Double phase obstacle problems with multivalued convection and mixed boundary value conditions

Shengda Zeng, Vicenţiu D. Rădulescu, Patrick Winkert

In this paper, we consider a mixed boundary value problem with a double phase partial differential operator, an obstacle effect and a multivalued reaction convection term. Under ve…

math.AP2021★ 1 cited

Combined effects of singular and superlinear nonlinearities in singular double phase problems in

Wulong Liu, Patrick Winkert

This paper is concerned with multiplicity results for parametric singular double phase problems in via the Nehari manifold approach. It is shown that the problem und…