Characterizations of series in Banach spaces.
Aizpuru, A., Pérez-Fernández, F.J. (1999)
Acta Mathematica Universitatis Comenianae. New Series
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Aizpuru, A., Pérez-Fernández, F.J. (1999)
Acta Mathematica Universitatis Comenianae. New Series
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Ondrej F. K. Kalenda (2003)
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Xiang, Tian, Yuan, Rong (2010)
Electronic Journal of Differential Equations (EJDE) [electronic only]
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Mieczysław Cichoń, Ireneusz Kubiaczyk (1995)
Annales Polonici Mathematici
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We investigate the structure of the set of solutions of the Cauchy problem x’ = f(t,x), x(0) = x₀ in Banach spaces. If f satisfies a compactness condition expressed in terms of measures of weak noncompactness, and f is Pettis-integrable, then the set of pseudo-solutions of this problem is a continuum in , the space of all continuous functions from I to E endowed with the weak topology. Under some additional assumptions these solutions are, in fact, weak solutions or strong Carathéodory...
Michal Fečkan (1996)
Annales Polonici Mathematici
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The Nielsen fixed point theory is used to show several results for certain operator equations involving weakly inward mappings.
Jesús M. Fernández Castillo, Marilda A. Simôes (2003)
Extracta Mathematicae
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Rosas, Ennis, Vielma, Jorge (1999)
Divulgaciones Matemáticas
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Saksman, Eero, Tylli, Hans-Olav (2008)
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S. Okada, S. Ricker (1994)
Colloquium Mathematicae
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Susumu Okada, Werner Ricker (1993)
Colloquium Mathematicae
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A. M. Peralta (2007)
Extracta Mathematicae
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