On functions whose improper Riemann integral is absolutely convergent
Christoph Klein (1987)
Studia Mathematica
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Christoph Klein (1987)
Studia Mathematica
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Tibor Šalát (1987)
Mathematica Slovaca
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Beer, G.A. (1978)
International Journal of Mathematics and Mathematical Sciences
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Jean Mawhin (1986)
Časopis pro pěstování matematiky
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Jean Mawhin (1981)
Czechoslovak Mathematical Journal
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M. A. Sofi (2012)
Colloquium Mathematicae
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It was proved by Kadets that a weak*-continuous function on [0,1] taking values in the dual of a Banach space X is Riemann-integrable precisely when X is finite-dimensional. In this note, we prove a Fréchet-space analogue of this result by showing that the Riemann integrability holds exactly when the underlying Fréchet space is Montel.