Wadge hardness in Scott spaces and its effectivization

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We prove some results on the Wadge order on the space of sets of natural numbers endowed with Scott topology, and more generally, on omega-continuous domains. Using alternating decreasing chains we characterize the property of Wadge hardness for the classes of the Hausdorff difference hierarchy (ite...

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Detalles Bibliográficos
Autores principales: Becher, V., Grigorieff, S.
Formato: JOUR
Materias:
Hardness
Topology
Continuous domain
Difference hierarchies
Hausdorff
Natural number
One chain
Scott topology
Chains
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_09601295_v39_n11_p_Becher
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

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