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Ivar Ekeland

Ivar I. Ekeland (born 2 July 1944, Paris) is a French mathematician of Norwegian descent. Ekeland has written influential monographs and textbooks on… Expand
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Papers overview

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2011
2011
We propose a very weak type of generalized distances called a weak τ-function and use it to weaken the assumptions about lower… Expand
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Highly Cited
2011
Highly Cited
2011
In this paper we prove a version of Ekeland's variational principle in b-metric spaces and, as a consequence, we obtain a Caristi… Expand
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2011
2011
Abstract To achieve optimal utilisation of logging residues for energy, it is important to know how different handling and… Expand
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Highly Cited
2008
Highly Cited
2008
Abstract In this paper, we introduce the concept of a Q -function defined on a quasi-metric space which generalizes the notion of… Expand
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Highly Cited
2008
Highly Cited
2008
The celebrated Brezis-Ekeland principle [C. R. Acad. Sci. Paris Ser. A-B, 282 (1976), pp. Ai, A1197-A1198, Aii, and A971-A974… Expand
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2007
2007
  • Lai-Jiu Lin
  • J. Global Optimization
  • 2007
  • Corpus ID: 19566162
In this paper, we prove the existence theorems of two types of systems of variational inclusions problem. From these existence… Expand
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2003
2003
This paper establishes (i) an extension of Michel's (1990, Theorem 1) necessity result to an abstract reduced-form model, (ii) a… Expand
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Highly Cited
2002
Highly Cited
2002
Economic models for hedonic markets characterize the pricing of bundles of attributes and the demand and supply of these… Expand
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1993
1993
Given X a Banach space and f: X → ℝ âˆa {+∞} a proper lower semicontinuous function which is bounded from below, the Ekeland's… Expand
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1980
1980
kbstract In this paper, we look for periodic solutions, with prescribed energy h C R, of Hamilton's equations: (H) a H (x, p), p… Expand
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