Injective tests of low complexity in the plane

Injective tests of low complexity in the plane

We study injective versions of the characterization of sets potentially in a Wadge class of Borel sets, for the first Borel and Lavrentieff classes. We also study the case of oriented graphs in terms of continuous homomorphisms, injective or not.

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Veröffentlicht in:Mathematical logic quarterly 2019-09, Vol.65 (2), p.134-169
Hauptverfasser: Lecomte, Dominique, Zamora, Rafael
Format: Artikel
Sprache:eng
Schlagworte:
Borel sets
Homomorphisms
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Zusammenfassung:We study injective versions of the characterization of sets potentially in a Wadge class of Borel sets, for the first Borel and Lavrentieff classes. We also study the case of oriented graphs in terms of continuous homomorphisms, injective or not.
ISSN:0942-5616
1521-3870
DOI:10.1002/malq.201600102