A Playful Glance at Hierarchical Questions for Two-Way Alternating Automata


Autoria(s): Duparc, J.; Facchini, A.; Archibald Margaret (ed.); Brattka Vasco (ed.); Goranko Valentin (ed.); Löwe Benedikt (ed.)
Data(s)

2009

Identificador

https://serval.unil.ch/notice/serval:BIB_EEF86EFB69D9

https://serval.unil.ch/resource/serval:BIB_EEF86EFB69D9.P001/REF

http://nbn-resolving.org/urn/resolver.pl?urn=urn:nbn:ch:serval-BIB_EEF86EFB69D97

urn:nbn:ch:serval-BIB_EEF86EFB69D97

Idioma(s)

eng

Publicador

Springer

Direitos

info:eu-repo/semantics/openAccess

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Fonte

Selected Papers of the International Conference Infinity in Logic and Computation, Cape Town, South Africa, November 20075489 46-55

Tipo

info:eu-repo/semantics/conferenceObject

inproceedings

Resumo

Two-way alternating automata were introduced by Vardi in order to study the satisfiability problem for the modal μ-calculus extended with backwards modalities. In this paper, we present a very simple proof by way of Wadge games of the strictness of the hierarchy of Motowski indices of two-way alternating automata over trees.

Formato

application/pdf

Palavras-Chave #µ-calculus; Backward modalities; Wadge games; Topological complexity; Parity games; Two-way alternating tree automata; Descriptive set theory