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Bibliographic Details
Main Authors: Bazhenov, Nikolay, Koh, Heer Tern, Ng, Keng Meng
Format: Preprint
Published: 2026
Subjects:
Online Access:https://arxiv.org/abs/2603.08006
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Table of Contents:
  • We study the primitive recursive analogue of computable categoricity spectra for various natural classes of structures. We show that these notions coincide for all relatively $Δ_{2}^{0}$-categorical equivalence structures and linear orders, relatively $Δ_{3}^{0}$-categorical Boolean algebras, and computably categorical tree as partial orders.