Mostra el registre d'ítem simple
Characterizations of some complexity classes between [theta sub 2 super p] and [delta sub 2 super p]
dc.contributor.author | Castro Rabal, Jorge |
dc.contributor.author | Seara Ojea, Carlos |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Ciències de la Computació |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Matemàtiques |
dc.date.accessioned | 2020-07-30T17:42:15Z |
dc.date.available | 2020-07-30T17:42:15Z |
dc.date.issued | 1990 |
dc.identifier.citation | Castro, J.; Seara, C. Characterizations of some complexity classes between [theta sub 2 super p] and [delta sub 2 super p]. 1990. |
dc.identifier.uri | http://hdl.handle.net/2117/328115 |
dc.description.abstract | We give some characterizations of the classes P super NP [0(log super k n)]. First, we show that these classes are equal to classes AC super k-1 (N P). Second, we prove that they are also equivalent to some classes defined in the Extended Boolean hierarchy. Finally, we show that there exists a strong connection between classes defined by polynomial time Turing machines with few queries to an N P oracle and classes defined by small size circuits with N P oracle gates. With these results we solve open questions arosed by K. W. Wagner and by E. Allender and C.B. Wilson. |
dc.format.extent | 13 p. |
dc.language.iso | eng |
dc.relation.ispartofseries | LSI-90-27 |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Spain |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Informàtica |
dc.subject.lcsh | Turing machines |
dc.subject.other | Extended Boolean hierarchy |
dc.title | Characterizations of some complexity classes between [theta sub 2 super p] and [delta sub 2 super p] |
dc.type | External research report |
dc.subject.lemac | Turing, Màquines de |
dc.contributor.group | Universitat Politècnica de Catalunya. LARCA - Laboratori d'Algorísmia Relacional, Complexitat i Aprenentatge |
dc.contributor.group | Universitat Politècnica de Catalunya. CGA - Computational Geometry and Applications |
dc.rights.access | Open Access |
local.identifier.drac | 1390230 |
dc.description.version | Postprint (published version) |
local.citation.author | Castro, J.; Seara, C. |
Fitxers d'aquest items
Aquest ítem apareix a les col·leccions següents
-
Reports de recerca [403]
-
Reports de recerca [6]
-
Reports de recerca [68]
-
Reports de recerca [1.107]