Complexity of equivalence relations and preorders from computability theory

E Ianovski, R Miller, KM Ng, A Nies - The Journal of Symbolic Logic, 2014 - cambridge.org
We study the relative complexity of equivalence relations and preorders from computability
theory and complexity theory. Given binary relations R, S, a componentwise reducibility is …

Computable embeddability for algebraic structures

N Bazhenov, M Mustafa - Asian-European Journal of Mathematics, 2022 - World Scientific
In computability theory, the standard tool to classify preorders is provided by the computable
reducibility. If R and S are preorders with domain ω, then R is computably reducible to S if …

Logic Blog 2015f

A Nies - arxiv preprint arxiv:1602.04432, 2016 - arxiv.org
arxiv:1602.04432v1 [math.LO] 14 Feb 2016 Page 1 arxiv:1602.04432v1 [math.LO] 14 Feb
2016 LOGIC BLOG 2015 EDITOR: ANDRÉ NIES The Logic Blog is for • rapidly announcing …