Jérôme Verliat (2007)
Extracta Mathematicae
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In this paper, we will use results developed by Ansari and Enflo in the theory of bounded linear operators with dense range. We define two maps, with regards to some parameters, that control surjectivity default of a given operator, and prove analycity for the first one and global continuity for the other one. Minimisation results are also obtained in relation to this study.
Marek Jarnicki, Peter Pflug (1991)
Annales Polonici Mathematici
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A survey of properties of invariant pseudodistances and pseudometrics is given with special stress put on completeness and product property.
Jarnicki, Witold (2001)
Zeszyty Naukowe Uniwersytetu Jagiellońskiego. Universitatis Iagellonicae Acta Mathematica
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Samsonia, Z., Zivzivadze, L. (2002)
Georgian Mathematical Journal
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Kajetan Tochowicz (1991)
Annales Polonici Mathematici
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We define some new classes of univalent functions. The Schiffer differential equations are obtained for extremal functions from some of these classes.
Božin, Vladimir, Marković, Vladimir (1999)
Annales Academiae Scientiarum Fennicae. Mathematica
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Zuzana Došlá, Ondřej Došlý (1995)
Commentationes Mathematicae Universitatis Carolinae
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Singular quadratic functionals of one dependent variable with nonseparated boundary conditions are investigated. Necessary and sufficient conditions for nonnegativity of these functionals are derived using the concept of and . The paper also includes two comparison theorems for coupled points with respect to the various boundary conditions.
Helena Ferreira, Marta Ferreira (2012)
Kybernetika
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Due to globalization and relaxed market regulation, we have assisted to an increasing of extremal dependence in international markets. As a consequence, several measures of tail dependence have been stated in literature in recent years, based on multivariate extreme-value theory. In this paper we present a tail dependence function and an extremal coefficient of dependence between two random vectors that extend existing ones. We shall see that in weakening the usual required dependence...
Urban Cegrell, Johan Thorbiörnson (1996)
Annales Polonici Mathematici
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We study different notions of extremal plurisubharmonic functions.
Shamoyan, Romi, Li, Haiying (2010)
The Journal of Nonlinear Sciences and its Applications
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