Algorithmic Construction of Real Hyperfields from Minimal Axioms

Fuente: arXiv
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Autori principali: Kędzierski, Dawid E., Kuhlmann, Katarzyna, Stojałowska, Hanna
Natura: Preprint
Pubblicazione: 2025
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author Kędzierski, Dawid E.
Kuhlmann, Katarzyna
Stojałowska, Hanna
author_facet Kędzierski, Dawid E.
Kuhlmann, Katarzyna
Stojałowska, Hanna
contents We study real hyperfields, focusing in particular on those that are finite with cyclic positive cones. All real hyperfields have characteristic zero, although they can still be classified using the C-characteristic, an invariant that captures essential structural information. We present an algorithm to determine all such hyperfields up to isomorphism and compute their C-characteristic. The algorithm is optimal in the sense that the set of axioms used is minimal. We develop and implement this algorithm in software, enabling a complete classification of finite real hyperfields with cyclic positive cones of order up to 15, as well as identification of the C-characteristic that occur in such hyperfields of order up to 17. Restricting attention to finite hyperfields of cyclic positive cones enables substantial simplification of the algorithm, thereby enhancing its computational efficiency and allowing for the rapid generation of hyperfields of large order. Using a criterion that allows us to determine whether a given finite real hyperfield is a Krasner quotient hyperfield, we obtain many new examples of hyperfields that do not arise from Krasner's quotient construction.
format Preprint
id arxiv_https___arxiv_org_abs_2508_19418
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Algorithmic Construction of Real Hyperfields from Minimal Axioms
Kędzierski, Dawid E.
Kuhlmann, Katarzyna
Stojałowska, Hanna
Rings and Algebras
16Y20, 12K99, 12E20, 20N20, 08A05
We study real hyperfields, focusing in particular on those that are finite with cyclic positive cones. All real hyperfields have characteristic zero, although they can still be classified using the C-characteristic, an invariant that captures essential structural information. We present an algorithm to determine all such hyperfields up to isomorphism and compute their C-characteristic. The algorithm is optimal in the sense that the set of axioms used is minimal. We develop and implement this algorithm in software, enabling a complete classification of finite real hyperfields with cyclic positive cones of order up to 15, as well as identification of the C-characteristic that occur in such hyperfields of order up to 17. Restricting attention to finite hyperfields of cyclic positive cones enables substantial simplification of the algorithm, thereby enhancing its computational efficiency and allowing for the rapid generation of hyperfields of large order. Using a criterion that allows us to determine whether a given finite real hyperfield is a Krasner quotient hyperfield, we obtain many new examples of hyperfields that do not arise from Krasner's quotient construction.
title Algorithmic Construction of Real Hyperfields from Minimal Axioms
topic Rings and Algebras
16Y20, 12K99, 12E20, 20N20, 08A05
url https://arxiv.org/abs/2508.19418