Categoricity in hyperarithmetical degrees

From MaRDI portal
Publication:1821772

DOI10.1016/0168-0072(87)90038-8zbMath0617.03016OpenAlexW2050198215MaRDI QIDQ1821772

C. J. Ash

Publication date: 1987

Published in: Annals of Pure and Applied Logic (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1016/0168-0072(87)90038-8




Related Items

Inseparability in recursive copiesStrong \(\Delta ^ 0_ 2\) categoricityDegrees of autostability relative to strong constructivizations for Boolean algebrasDegrees of autostability for linear orders and linearly ordered abelian groupsA robuster Scott rankScott ranks of models of a theoryBack and forth relations for reduced abelian \(p\)-groupsGeneric copies of countable structuresDegrees of categoricity for superatomic Boolean algebrasStrong degrees of categoricity and weak densityPairs of recursive structuresLabelling systems and r.e. structuresThe complexity of computable categoricityComputability-theoretic categoricity and Scott families2010 European Summer Meeting of the Association for Symbolic Logic. Logic Colloquium '10DEGREES OF CATEGORICITY ON A CONE VIAη-SYSTEMSEffective categoricity of equivalence structuresDegrees of autostability relative to strong constructivizationsCategoricity spectra of computable structuresAsh's theorem on \(\Delta_{\alpha}^{0}\)-categorical structures and a condition for infinite \(\Delta_{\alpha}^{0}\)-dimensionCategoricity and complexity of relations over algebraic structuresThe computable dimension of trees of infinite heightComputable categoricity of trees of finite heightEffective categoricity of abelian \(p\)-groupsCOMPUTABLE STRUCTURES OF RANK $\omega_{1}^{{\rm CK}}$On bi-embeddable categoricity of algebraic structuresCoding in the automorphism group of a computably categorical structureOn the $n$-back-and-forth types of Boolean algebrasComputable isomorphisms, degree spectra of relations, and Scott familiesEnumerations in computable structure theoryHyperarithmetical relations in expansions of recursive structures



Cites Work