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Characterization of upper semicontinuously integrable functions

Published online by Cambridge University Press:  09 April 2009

Zoltán Buczolich
Affiliation:
Department of Analysis, Eötövos Loránd University, Budapest, Muzeum krt 6–8, Hungary, H-1088, e-mail: [email protected]
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Abstract

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We show that for a Henstock-Kurzweil integrable function f for every ∈ > 0 one can choose an upper semicontinuous gage function δ, used in the definition of the HK-integral if and only if |f| is bounded by a Baire 1 function. This answers a question raised by C. E. Weil.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1995

References

[1]Alexandroff, P. and Hopf, H., Topologie (Chelsea, New York, 1965).Google Scholar
[2]Buczolich, Z., ‘Nearly upper semicontinuous gage functions in Rm’, Real Anal. Exchange 13 (19871988), 245252.CrossRefGoogle Scholar
[3]Pfeffer, W. F., ‘A note on the generalized Riemann integral’, Proc. Amer. Math. Soc. 103 (1988), 11611166.CrossRefGoogle Scholar
[4]Pfeffer, W. F., ‘A Riemann type integration and the fundamental theorem of calculus’, Rend. Circolo Mat. Palermo (2), XXXVI (1987), 482506.CrossRefGoogle Scholar
[5]Pfeffer, W. F., ‘Lectures on geometric integration and the divergence theorem’, Rend. Istit. Mat. Univ. Trieste, in press.Google Scholar
[6]Ziemer, W. P., Weakly differentiable functions (Springer, Berlin, 1989).CrossRefGoogle Scholar