Some combinatorial problems on the measurability of functions with respect to invariant extensions of the Lebesgue measure
A. B. Kharazishvili (2010)
Acta Universitatis Carolinae. Mathematica et Physica
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A. B. Kharazishvili (2010)
Acta Universitatis Carolinae. Mathematica et Physica
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Krzysztof Ciesielski, Andrzej Pelc (1985)
Fundamenta Mathematicae
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A. B. Kharazishvili (1994)
Acta Universitatis Carolinae. Mathematica et Physica
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D. Fremlin (1991)
Fundamenta Mathematicae
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Piotr Zakrzewski (1997)
Colloquium Mathematicae
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Let G be a group of homeomorphisms of a nondiscrete, locally compact, σ-compact topological space X and suppose that a Haar measure on X exists: a regular Borel measure μ, positive on nonempty open sets, finite on compact sets and invariant under the homeomorphisms from G. Under some mild assumptions on G and X we prove that the measure completion of μ is the unique, up to a constant factor, nonzero, σ-finite, G-invariant measure defined on its domain iff μ is ergodic and the G-orbits...
Baltasar Rodríguez-Salinas (2001)
RACSAM
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We give necessary and sufficient conditions for a totally ordered by extension family (Ω, Σ, μ) of spaces of probability to have a measure μ which is an extension of all the measures μ. As an application we study when a probability measure on Ω has an extension defined on all the subsets of Ω.
Kharazishvili, A.B. (1997)
Journal of Applied Analysis
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Antoni Leon Dawidowicz (1992)
Annales Polonici Mathematici
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A generalization of the Avez method of construction of an invariant measure is presented.
Baltasar Rodríguez-Salinas (2001)
RACSAM
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Estudiamos cuando el límite uniforme de una red de funciones cuasi-continuas con valores en un espacio localmente convexo X es también una función cuasi-continua, resaltando que esta propiedad depende del menor cardinal de un sistema fundamental de entornos de O en X, y estableciendo condiciones necesarias y suficientes. El principal resultado de este trabajo es el Teorema 15, en el que los resultados de [7] y [10] son mejorados, en relación al Teorema de L. Schwartz.