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The Order of Algebraic Linear Transformations

Published online by Cambridge University Press:  20 November 2018

Randee Putz*
Affiliation:
Temple University, Philadelphia, Pennsylvania
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In this paper we extend the results of an earlier note [1].

Definition. Let E be an extension field of the rationals. A vector v = (b1, …, bn) in En is algebraic if each coordinate bi is algebraic over the rationals. A linear transformation T: EnEn is algebraic if T(v) is an algebraic vector for every algebraic vector v.

Definition. The degree of an algebraic linear transformation T, denoted by deg T, is the minimum of [K:Q] taken over all finite algebraic extensions K of the rationals Q such that T: KnKn.

Type
Research Article
Copyright
Copyright © Canadian Mathematical Society 1970

References

1. Putz, Randee, An estimate for the order of rational matrices, Canad. Math. Bull. 10 (1967), 459-461.Google Scholar