A twisted group algebra structure for an algebra obtained by the Cayley – Dickson process

  • R. Boboescu Ovid-universitetet i Constanta, Romania
  • C. Flaut Ovid-universitetet i Constanta, Romania
Keywords: Cayley-Dickson algebras; twisted group algebras; nonassociative quaternion algebras;

Abstract

UDC 512.55

Starting from some ideas given in [J. W. Bales, A tree for computing the Cayley–Dickson twist, Missouri J. Math. Sci., 21, No. 2, 83–93 (2009)], in this paper we present an algorithm for computing the elements of the basis in an algebra obtained by the Cayley–Dickson process.  As a consequence of this result, we prove that an algebra obtained by the Cayley–Dickson process is a twisted group algebra for the group $G=\mathbb{Z}_{2}^{n},n=2^{t}$, $t\in \mathbb{N}$, over a field $K$ with ${\rm char} K\neq 2$.  We give some properties and applications of the quaternion nonassociative algebras. 

Author Biography

R. Boboescu, Ovid-universitetet i Constanta, Romania

 

 

References

J. W. Bales, A tree for computing the Cayley – Dickson twist, Missouri J. Math. Sci., 21, № 2, 83 – 93 (2009). DOI: https://doi.org/10.35834/mjms/1316027241

C. Flaut, V. Shpakivskyi, Holomorphic functions in generalized Cayley – Dickson algebras, Adv. Appl. Clifford Algebras, 25, № 1, 95 – 112 (2015), https://doi.org/10.1007/s00006-014-0479-8 DOI: https://doi.org/10.1007/s00006-014-0479-8

S. Pumplun, How to obtain division algebras from a generalized Cayley – Dickson doubling process, J. Algebra, 402, 406 – 434 (2014), https://doi.org/10.1016/j.jalgebra.2013.11.025 DOI: https://doi.org/10.1016/j.jalgebra.2013.11.025

W. F. Reynolds, Twisted group algebras over arbitrary fields, Illinois J. Math., 3, 91 – 103 (1971). DOI: https://doi.org/10.1215/ijm/1256052823

R. D. Schafer, An introduction to nonassociative algebras, Acad. Press, New York (1966).

R. D. Schafer, On the algebras formed by the Cayley – Dickson process, Amer. J. Math., 76, 435 – 446 (1954), https://doi.org/10.2307/2372583 DOI: https://doi.org/10.2307/2372583

W. C. Waterhouse, Nonassociative quaternion algebras, Algebras, Groups and Geometries, 4, 365 – 378 (1987).

Published
07.07.2022
How to Cite
BoboescuR., and FlautC. “A Twisted Group Algebra Structure for an Algebra Obtained by the Cayley – Dickson Process”. Ukrains’kyi Matematychnyi Zhurnal, Vol. 74, no. 6, July 2022, pp. 752 -60, doi:10.37863/umzh.v74i6.6949.
Section
Research articles