Vitali-Carathéodory theorem

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English

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Etymology

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Named after Giuseppe Vitali and Constantin Carathéodory.

Proper noun

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Vitali-Carathéodory theorem

  1. (mathematical analysis) A theorem which states that any real-valued Lebesgue integrable function can be approached arbitrarily closely from below by an upper semicontinuous function and also from above by a lower semicontinuous function.