More non-analytic classes of continua (Q1868857)
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scientific article; zbMATH DE number 1901906
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | More non-analytic classes of continua |
scientific article; zbMATH DE number 1901906 |
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More non-analytic classes of continua (English)
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28 April 2003
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Many sets of standard mathematical objects offer natural examples of analytic non-Borel or co-analytic non-Borel sets. A comprehensive survey of such examples can be found in [\textit{H. Becker}, Math. Sci. Res. Inst. Publ. 26, 1-25 (1992; Zbl 0786.04001)]. In the present paper the author finds many classes of continua that are co-analytic hard or co-analytic complete. The results generally concern families of continua that do not contain a given continuum (or types of continua).
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continuum
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co-analytic set
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chainable continuum
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dendroid
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