Results 11 to 20 of about 76 (76)

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

Bundling and nonlinear pricing in telecommunications

The RAND Journal of Economics, Volume 54, Issue 2, Page 268-298, Summer 2023., 2023
Abstract I develop a multiproduct nonlinear pricing model where a firm sells both discrete and continuous services to consumers with multidimensional heterogeneity. I derive the optimal selling mechanism and provide primitive conditions under which different bundling strategies arise. Exploiting both the firm and the consumer's optimality conditions, I
Yao Luo
wiley   +1 more source

Ekeland's Variational Principle for Set-Valued Functions [PDF]

SIAM Journal on Optimization, 2011
The authors extend Ekeland's variational principle to the case of set-valued mappings by using a set of directions and some particular partial orders related to it. Then, as an application they establish some sufficient conditions for the existence of an error bound of a finite system of inequalities of lower semicontinuous functions on a Banach space.
C. G. Liu, K. F. Ng
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On Nonlocal Elliptic Problems of the Kirchhoff Type Involving the Hardy Potential and Critical Nonlinearity

Journal of Applied Mathematics, Volume 2023, Issue 1, 2023., 2023
In this article, we deal with the nonlocal elliptic problems of the Kirchhoff type involving the Hardy potential and critical nonlinearity on a bounded domain in R3. Under an appropriate condition on the nonhomogeneous term and using variational methods, we obtain two distinct solutions.
M. E. O. El Mokhtar, S. Benmansour, A. Matallah, Sheng Zhang   +3 more
wiley   +1 more source

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

Existence of equilibria via Ekeland's principle

Journal of Mathematical Analysis and Applications, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bianchi, Monica, Kassay, Gabor, Pini, Rita   +2 more
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Parametric Ekeland's variational principle

Applied Mathematics Letters, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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From Catastrophe to Escape: A Bourdieusian Analysis of Personal Debt in The Netherlands

Sociology Compass, Volume 20, Issue 6, June 2026.
ABSTRACT This paper examines how individuals experience and respond to personal debt, arguing that debt is not merely a financial problem but a systemic issue that affects social relationships, moral worth, and health. Drawing on online forum posts, and grounded in Bourdieu's theory of capital, the paper introduces an expanded framework of ‘assets’ and
Joost Beuving, Zunera Rana, Henry van der Burgt, Kimberly Kuipers, Rosemarijn de Bruin   +4 more
wiley   +1 more source

Product differentiation in the fruit industry: Lessons from trademarked apples

Agribusiness, Volume 42, Issue 1, Page 148-174, Winter 2026.
Abstract We derive price premiums for patented or trademarked apple varieties, also known as “club apples,” compared to open‐variety apples. We use an expansive retail scanner dataset, along with unique data on apple taste characteristics, to estimate monthly club apple premiums for 2008–2018.
Modhurima Dey Amin, Syed Badruddoza, Jill J. McCluskey, Gregory Astill   +3 more
wiley   +1 more source