SORBI, ANDREA
SORBI, ANDREA
Dipartimento di Ingegneria dell'Informazione e Scienze Matematiche
A characterization of the Δ20 hyperhyperimmune sets
2008-01-01 Omanadze, R. S. h.; Sorbi, Andrea
A note on algebras of languages
2011-01-01 Marini, C.; Simi, G.; Sorbi, A.; Sorrentino, M.
A note on closed degrees of difficulty of the Medvedev lattice
1996-01-01 Bianchini, C.; Sorbi, A.
A note on initial segments of the enumeration degrees
2014-01-01 Slaman, T. A.; Sorbi, Andrea
A Note on Relative Efficiency of Axiom Systems
1994-01-01 Fontani, Sandra; Montagna, F.; Sorbi, A.
A note on the enumeration degrees of 1-generic sets
2016-01-01 Badillo, Liliana; Bianchini, Caterina; Ganchev, Hristo; Kent, Thomas F.; Sorbi, Andrea
A note on uniform density in weak arithmetical theories
2021-01-01 Pianigiani, Duccio; Sorbi, Andrea
A survey on universal computably enumerable equivalence relations
2017-01-01 Andrews, U.; Badaev, S.; Sorbi, Andrea
Algebraic properties of Rogers semilattices of arithmetical numberings
2003-01-01 Badaev, S.; Goncharov, S.; Podzorov, S.; Sorbi, Andrea
Bounded enumeration reducibility and its degree structure
2012-01-01 Marsibilio, D.; Sorbi, Andrea
Bounding and nonbounding minimal pairs in the enumeration degrees
2005-01-01 Cooper, S. B.; Li, A.; Sorbi, Andrea; Yang, Y.
Bounding nonsplitting enumeration degrees
2007-01-01 Kent, T. F.; Sorbi, Andrea
Branching in the enumeration degrees of the Σ02sets
1999-01-01 Nies, A.; Sorbi, A.
Branching in the Σ02 -enumeration degrees: a new perspective
2008-01-01 Affatato, M.; Kent, T. F.; Sorbi, Andrea
Calibrating word problems of groups via the complexity of equivalence relations
2018-01-01 Nies, Andrè; Sorbi, Andrea
Classifying equivalence relations in the Ershov hierarchy
2020-01-01 Bazhenov, Nikolay; Mustafa, Manat; SAN MAURO, LUCA FRANCESCO; Sorbi, Andrea; Yamaleev, Mars
Classifying positive equivalence relations
1983-01-01 Bernardi, Claudio; Sorbi, Andrea
Classifying word problems of finitely generated algebras via computable reducibility
2023-01-01 Delle Rose, Valentino; San Mauro, Luca; Sorbi, Andrea
Comparing Pi^0_2 of the Baire space by means of general recursive operators
1991-01-01 Sorbi, Andrea
Comparing the degrees of enumerability and the closed Medvedev degrees
2019-01-01 Shafer, Paul; Sorbi, Andrea