Potential Wadge Classes
- Format
- Bog, paperback
- Engelsk
- 83 sider
- Indgår i serie
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kr. 664,95
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kr. 599,95
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Beskrivelse
Let $\bf\Gamma$ be a Borel class, or a Wadge class of Borel sets, and $2\!\leq\! d\!\leq\!\omega$ be a cardinal. A Borel subset $B$ of ${\mathbb R}^d$ is potentially in $\bf\Gamma$ if there is a finer Polish topology on $\mathbb R$ such that $B$ is in $\bf\Gamma$ when ${\mathbb R}^d$ is equipped with the new product topology. The author provides a way to recognize the sets potentially in $\bf\Gamma$ and applies this to the classes of graphs (oriented or not), quasi-orders and partial orders.
Detaljer
- SprogEngelsk
- Sidetal83
- Udgivelsesdato19-09-2013
- ISBN139780821875575
- Forlag American Mathematical Society
- FormatPaperback
Størrelse og vægt
10 cm
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