<p>We introduce various global smallness conditions for Riemann sums within the vector-valued Riemann-measurable function class. In terms of these conditions, we clarify to some extent the nature of the differences between the absolute Birkhoff, McShane and Henstock integrals from one side and the <Emphasis FontCategory="SansSerif">A</Emphasis>-Riemann, <Emphasis FontCategory="SansSerif">A</Emphasis>- and <Emphasis FontCategory="SansSerif">Q</Emphasis>-integrals from the other side. In particular, we prove that the McShane and <Emphasis FontCategory="SansSerif">A</Emphasis>-Riemann integrals do not contradict one another.</p>

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On vector-valued functions with small Riemann sums

  • K. Naralenkov

摘要

We introduce various global smallness conditions for Riemann sums within the vector-valued Riemann-measurable function class. In terms of these conditions, we clarify to some extent the nature of the differences between the absolute Birkhoff, McShane and Henstock integrals from one side and the A-Riemann, A- and Q-integrals from the other side. In particular, we prove that the McShane and A-Riemann integrals do not contradict one another.