Baire one functions and perfect sets (Q1308867)
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scientific article; zbMATH DE number 465126
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Baire one functions and perfect sets |
scientific article; zbMATH DE number 465126 |
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Baire one functions and perfect sets (English)
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15 December 1993
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The paper presents a simple proof of the well-known characterization of functions belonging to the Baire class one. The proof is based upon a Romanovski's lemma [\textit{P. Romanovski}, Fundam. Math. 19, 38-44 (1932; Zbl 0005.39201)] and does not use transfinite numbers.
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perfect sets
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Baire class one
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