Results 21 to 30 of about 2,807 (153)

An optimal control problem of forward-backward stochastic Volterra integral equations with state constraints [PDF]

, 2013
This paper is devoted to the stochastic optimal control problems for systems governed by forward-backward stochastic Volterra integral equations (FBSVIEs, for short) with state constraints.
Wei, Qingmeng, Xiao, Xinling
core   +8 more sources

Critical Fractional p‐Laplacian System with Negative Exponents

Journal 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

Journal 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

A Class of Variable-Order Fractional p·-Kirchhoff-Type Systems

Journal of Function Spaces, 2021
This paper is concerned with an elliptic system of Kirchhoff type, driven by the variable-order fractional px-operator. With the help of the direct variational method and Ekeland variational principle, we show the existence of a weak solution.
Yong Wu, Zhenhua Qiao, Mohamed Karim Hamdani, Bingyu Kou, Libo Yang   +4 more
doaj   +1 more source

A class of fourth-order elliptic equations with concave and convex nonlinearities in $\mathbb{R}^N$

Electronic Journal of Qualitative Theory of Differential Equations, 2021
In this article, we study the multiplicity of solutions for a class of fourth-order elliptic equations with concave and convex nonlinearities in $\mathbb{R}^N$.
Zijian Wu, Haibo Chen
doaj   +1 more source

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

Health 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, Maria P. Gonzalez, Carlos Scartascini   +2 more
wiley   +1 more source

On Ekeland’s variational principle [PDF]

Journal of Fixed Point Theory and Applications, 2011
For proper lower semi-continuous functionals bounded below which do not increase upon polarization, an improved version of Ekeland's variational principle can be formulated in Banach spaces, which provides almost symmetric points.
openaire   +4 more sources

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

Journal 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

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

Journal 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, Atika Matallah, Safia Benmansour, Mohammed El Mokhtar Ould El Mokhtar, Pasquale Vetro   +4 more
wiley   +1 more source

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

Journal 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, Andrea Scapellato   +1 more
wiley   +1 more source