Borel chromatic number of closed graphs
Dominique Lecomte ; Miroslav Zelený
Fundamenta Mathematicae, Tome 233 (2016), p. 163-169 / Harvested from The Polish Digital Mathematics Library
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We construct, for each countable ordinal ξ, a closed graph with Borel chromatic number 2 and Baire class ξ chromatic number ℵ₀.

Publié le : 2016-01-01
EUDML-ID : urn:eudml:doc:286078 
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     author = {Dominique Lecomte and Miroslav Zelen\'y},
     title = {Borel chromatic number of closed graphs},
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     volume = {233},
     year = {2016},
     pages = {163-169},
     zbl = {06602787},
     language = {en},
     url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-fm152-11-2015}
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Dominique Lecomte; Miroslav Zelený. Borel chromatic number of closed graphs. Fundamenta Mathematicae, Tome 233 (2016) pp. 163-169. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-fm152-11-2015/