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Theoretical work investigates non-dense punctual degrees in discrete orders, impacting equivalence relations.
K. J. Khoo, H. T. Koh, K. M. Ng. A discrete linear order with non-dense punctual degrees. Theoretical Computer Science, vol. 1047 (2025), Paper no. 115324, 20 pp. - N. Bazhenov, K. M. Ng, L. S. Mauro, A. Sorbi. Primitive recursive equivalence relations and their primitive recursive complexity. Computability, vol.11, nos. 3-4 (2022), pp. 187–221. - B. S. Kalmurzayev, N. A. Bazhenov, A. M. Iskakov. Computably enumerable equivalence relations via primitive recursive reductions, Journal of Logic and Computation, vol. 35, no. 2 (2024), Paper no. exad082, 31 pp.
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