Normalization of Quaternionic Polynomials in Coordinate-Free Quaternionic Variables in Conjugate-Alternating Order

Fuente: arXiv
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Autori principali: Li, Hongbo, Wang, Zhengyang, Liu, Yue, Huang, Lei, Shao, Changpeng
Natura: Preprint
Pubblicazione: 2025
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author Li, Hongbo
Wang, Zhengyang
Liu, Yue
Huang, Lei
Shao, Changpeng
author_facet Li, Hongbo
Wang, Zhengyang
Liu, Yue
Huang, Lei
Shao, Changpeng
contents Quaternionic polynomials occur naturally in applications of quaternions in science and engineering, and normalization of quaternionic polynomials is a basic manipulation. Once a Groebner basis is certified for the defining ideal I of the quaternionic polynomial algebra, the normal form of a quaternionic polynomial can be computed by routine top reduction with respect to the Groebner basis. In the literature, a Groebner basis under the conjugate-alternating order of quaternionic variables was conjectured for I in 2013, but no readable and convincing proof was found. In this paper, we present the first readable certification of the conjectured Groebner basis. The certification is based on several novel techniques for reduction in free associative algebras, which enables to not only make reduction to S-polynomials more efficiently, but also reduce the number of S-polynomials needed for the certification.
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id arxiv_https___arxiv_org_abs_2504_14990
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Normalization of Quaternionic Polynomials in Coordinate-Free Quaternionic Variables in Conjugate-Alternating Order
Li, Hongbo
Wang, Zhengyang
Liu, Yue
Huang, Lei
Shao, Changpeng
Symbolic Computation
I.1.1, F.2.1
Quaternionic polynomials occur naturally in applications of quaternions in science and engineering, and normalization of quaternionic polynomials is a basic manipulation. Once a Groebner basis is certified for the defining ideal I of the quaternionic polynomial algebra, the normal form of a quaternionic polynomial can be computed by routine top reduction with respect to the Groebner basis. In the literature, a Groebner basis under the conjugate-alternating order of quaternionic variables was conjectured for I in 2013, but no readable and convincing proof was found. In this paper, we present the first readable certification of the conjectured Groebner basis. The certification is based on several novel techniques for reduction in free associative algebras, which enables to not only make reduction to S-polynomials more efficiently, but also reduce the number of S-polynomials needed for the certification.
title Normalization of Quaternionic Polynomials in Coordinate-Free Quaternionic Variables in Conjugate-Alternating Order
topic Symbolic Computation
I.1.1, F.2.1
url https://arxiv.org/abs/2504.14990