Results 11 to 20 of about 144 (97)

Critical Fractional p‐Laplacian System with Negative Exponents

open access: yesJournal of Function Spaces, Volume 2023, Issue 1, 2023., 2023
In this paper, we consider a class of fractional p‐Laplacian problems with critical and negative exponents. By decomposition of the Nehari manifold, the existence and multiplicity of nontrivial solutions for the above problems are established with respect to a sufficiently small parameter.
Qinghao Zhu, Jianming Qi, Baowei Feng
wiley   +1 more source

Shame On You! Unpacking the Individual and Organizational Implications of Engaging with a Stigmatized Organization

open access: yesJournal of Management Studies, Volume 59, Issue 8, Page 2024-2066, December 2022., 2022
Abstract How and when does engagement with a stigmatized organization lead to the transfer of its stigma to organizations and individuals associating with it? To answer this question, we conduct an inductive study of the process of stigma transfer and the conditions determining social actors’ susceptibility to such courtesy stigma. We build our process
Gro Kvåle, Zuzana Murdoch
wiley   +1 more source

On the demand for telemedicine: Evidence from the COVID‐19 pandemic

open access: yesHealth Economics, Volume 31, Issue 7, Page 1491-1505, July 2022., 2022
Abstract Telemedicine can expand access to health care at relatively low cost. Historically, however, demand for telemedicine has remained low. Using administrative records and a difference‐in‐differences methodology, we estimate the change in demand for telemedicine experienced after the onset of the COVID‐19 epidemic and the imposition of mobility ...
Matias Busso   +2 more
wiley   +1 more source

Multiple Positive Solutions and Estimates of Extremal Values for a Nonlocal Problem with Critical Sobolev Exponent and Concave‐Convex Nonlinearities

open access: yesJournal of Function Spaces, Volume 2022, Issue 1, 2022., 2022
We are concerned with the following nonlocal problem involving critical Sobolev exponent −a−b∫Ω∇u2dxΔu=λuq−2u+δu2u,x∈Ω,u=0,x∈∂Ω, where Ω is a smooth bounded domain in ℝ4, a, b > 0, 1 < q < 2, δ, and λ are positive parameters. We prove the existence of two positive solutions and obtain uniform estimates of extremal values for the problem.
Zhigao Shi, Xiaotao Qian, Simone Secchi
wiley   +1 more source

On Nonsmooth Global Implicit Function Theorems for Locally Lipschitz Functions from Banach Spaces to Euclidean Spaces

open access: yesAbstract and Applied Analysis, Volume 2022, Issue 1, 2022., 2022
In this paper, we establish a generalization of the Galewski‐Rădulescu nonsmooth global implicit function theorem to locally Lipschitz functions defined from infinite dimensional Banach spaces into Euclidean spaces. Moreover, we derive, under suitable conditions, a series of results on the existence, uniqueness, and possible continuity of global ...
Guy Degla   +3 more
wiley   +1 more source

Existence of Two Solutions for a Critical Elliptic Problem with Nonlocal Term in ℝ4

open access: yesJournal of Function Spaces, Volume 2022, Issue 1, 2022., 2022
In this paper, we prove the existence of two positive solutions for a critical elliptic problem with nonlocal term and Sobolev exponent in dimension four.
Khadidja Sabri   +4 more
wiley   +1 more source

Generalized Ekeland’s variational principle with applications

open access: yesJournal of Inequalities and Applications, 2019
By using the concept of Γ-distance, we prove EVP (Ekeland’s variational principle) on quasi-F-metric (q-F-m) spaces. We apply EVP to get the existence of the solution to EP (equilibrium problem) in complete q-F-m spaces with Γ-distances.
Eshagh Hashemi   +2 more
doaj   +1 more source

On p‐Laplace Equations with Singular Nonlinearities and Critical Sobolev Exponent

open access: yesJournal of Function Spaces, Volume 2022, Issue 1, 2022., 2022
In this paper, we deal with p‐Laplace equations with singular nonlinearities and critical Sobolev exponent. By using the Nehari manifold, Mountain Pass theorem, and Maximum principle theorem, we prove the existence of at least four distinct nontrivial solutions.
Mohammed El Mokhtar ould El Mokhtar   +1 more
wiley   +1 more source

Multiplicity Results for Weak Solutions of a Semilinear Dirichlet Elliptic Problem with a Parametric Nonlinearity

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2022, Issue 1, 2022., 2022
This paper deals with the existence of weak solutions to a Dirichlet problem for a semilinear elliptic equation involving the difference of two main nonlinearities functions that depends on a real parameter λ. According to the values of λ, we give both nonexistence and multiplicity results by using variational methods. In particular, we first exhibit a
Ayékotan Messan Joseph Tchalla   +2 more
wiley   +1 more source

Vectorial Ekeland Variational Principles and Inclusion Problems in Cone Quasi-Uniform Spaces

open access: yesAbstract and Applied Analysis, 2012
Some new vectorial Ekeland variational principles in cone quasi-uniform spaces are proved. Some new equivalent principles, vectorial quasivariational inclusion principle, vectorial quasi-optimization principle, vectorial quasiequilibrium principle are ...
Jiang Zhu   +3 more
doaj   +1 more source

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