English

On two-dimensional continued fractions for the integer hyperbolic matrices with small norm

Number Theory 2009-11-17 v1

Abstract

In this note we classify two-dimensional continued fractions for cubic irrationalities constructed by matrices with not large norm (6|*| \le 6). The classification is based on the following new result: the class of matrices with an irreducible characteristic polynomial over the field of rational numbers is the class of matrices of frobenius type iff there exists an integer solution for a certain equation with integer coefficients.

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Cite

@article{arxiv.0911.3040,
  title  = {On two-dimensional continued fractions for the integer hyperbolic matrices with small norm},
  author = {Oleg Karpenkov},
  journal= {arXiv preprint arXiv:0911.3040},
  year   = {2009}
}
R2 v1 2026-06-21T14:12:11.358Z