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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 = (b 1, …, b n ) in E n is algebraic if each coordinate b i is algebraic over the rationals. A linear transformation T: E n E n 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: K n K n .

Information

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