A non-Jordan-measurable regularly open subset of the unit interval (Q1961701)
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scientific article; zbMATH DE number 1394464
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | A non-Jordan-measurable regularly open subset of the unit interval |
scientific article; zbMATH DE number 1394464 |
Statements
A non-Jordan-measurable regularly open subset of the unit interval (English)
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25 May 2000
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The author constructs a regularly open subset of the unit interval which is not Jordan-measurable. A regularly open set is the interior of its closure. A subset of the unit interval is Jordan-measurable if and only if its boundary has Lebesgue-measure zero.
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Jordan-measurability
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regularly open sets
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