Results 21 to 30 of about 359 (156)
A symplectic Brezis–Ekeland–Nayroles principle [PDF]
Mathematics and Mechanics of Solids, 2016 We propose a modification of the Hamiltonian formalism which can be used for dissipative systems. This work continues a previous work on Hamiltonian inclusions and advances by the introduction of a symplectic version of the Brezis–Ekeland–Nayroles principle. As an application we show how standard plasticity can be treated in our formalism.
Buliga, Marius, de Saxce, Gery
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Ekeland’s variational principle for interval-valued functions
Computational and Applied Mathematics, 2023 In this paper, we attempt to propose Ekeland's variational principle for interval-valued functions (IVFs). To develop the variational principle, we study the concept of sequence of intervals. In the sequel, the idea of gH-semicontinuity for IVFs is explored.
Gourav Kumar, Debdas Ghosh
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Researching what we practice—The paradigm of systemic family research: Part 1
Family Process, Volume 62, Issue 3, Page 947-960, September 2023., 2023 Abstract This is part 1 of two articles that focus on the ideological and philosophical preference regarding how to relate to and conduct research in the field of systemic couple and family therapy. Thus, this article outlines the theoretical groundwork for part 2 of “Researching what we practice” in the same journal.
Lennart Lorås +3 more
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Equilibria of time‐inconsistent stopping for one‐dimensional diffusion processes
Mathematical Finance, Volume 33, Issue 3, Page 797-841, July 2023., 2023 Abstract We consider three equilibrium concepts proposed in the literature for time‐inconsistent stopping problems, including mild equilibria (introduced in Huang and Nguyen‐Huu (2018)), weak equilibria (introduced in Christensen and Lindensjö (2018)), and strong equilibria (introduced in Bayraktar et al. (2021)). The discount function is assumed to be
Erhan Bayraktar, Zhenhua Wang, Zhou Zhou
wiley +1 more source
Equilibrium investment with random risk aversion
Mathematical Finance, Volume 33, Issue 3, Page 946-975, July 2023., 2023 Abstract We solve the problem of an investor who maximizes utility but faces random preferences. We propose a problem formulation based on expected certainty equivalents. We tackle the time‐consistency issues arising from that formulation by applying the equilibrium theory approach.
Sascha Desmettre, Mogens Steffensen
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Campbell Systematic Reviews, Volume 19, Issue 2, June 2023., 2023 Abstract This is the protocol for a Campbell systematic review. The main objective of this review is to answer the research question: What are the effects of organised sport on risk behaviour, personal, emotional and social skills of young people, who either have experienced or is at‐risk of experiencing an adverse outcome?
Trine Filges +3 more
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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.
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General Versions of the Ekeland Variational Principle: Ekeland Points and Stop and Go Dynamics
Journal of Optimization Theory and Applications, 2022 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Le Phuoc Hai +2 more
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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
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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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