Periodicity of general multidimensional continued fractions using repetend matrix form

Abstract

We consider expansions of vectors by a general class of multidimensional continued fraction algorithms. If the expansion is eventually periodic, then we describe the possible structure of a matrix corresponding to the repetend, and use it to prove that a number of vectors has an eventually periodic expansion in the Algebraic Jacobi--Perron Algorithm. Further, we give criteria for vectors to have purely periodic expansions; in particular, the vector cannot be totally positive.

31 pages

References in corpus (1)

• On a periodic Jacobi-Perron type algorithm

Cited by in corpus (2)

• Universal quadratic forms and indecomposables in number fields: A survey
• Arithmetic of cubic number fields: Jacobi-Perron, Pythagoras, and indecomposables