Punctual structure theory is a rapidly emerging subfield of computable structure theory which aims at understanding the primitive recursive content of algebraic structures. A structure with domain ℕ is punctual if its relations and functions are (uniformly) primitive recursive. One of the fundamental problems of this area is to understand which computable members of a given class of structures admit a punctual presentation. We investigate such a problem for a number of familiar classes of algebraic structures, paying special attention to the case of trees, presented both in a relational and functional signature.
@InProceedings{kalocinski_et_al:LIPIcs.MFCS.2024.65, author = {Kaloci\'{n}ski, Dariusz and San Mauro, Luca and Wroc{\l}awski, Micha{\l}}, title = {{Punctual Presentability in Certain Classes of Algebraic Structures}}, booktitle = {49th International Symposium on Mathematical Foundations of Computer Science (MFCS 2024)}, pages = {65:1--65:15}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-95977-335-5}, ISSN = {1868-8969}, year = {2024}, volume = {306}, editor = {Kr\'{a}lovi\v{c}, Rastislav and Ku\v{c}era, Anton{\'\i}n}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.MFCS.2024.65}, URN = {urn:nbn:de:0030-drops-206212}, doi = {10.4230/LIPIcs.MFCS.2024.65}, annote = {Keywords: fully primitive recursive structures, punctual presentability, trees, injection structures} }
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