Abstract
We continue the investigation started by A. Dubickas of the numbers which are differences of two conjugates of an algebraic integer over the field Q of rational numbers. Mainly, we show that the cubic algebraic integers over Q with zero trace satisfy this property and we give a characterisation for those for which this property holds in their normal closure. We also prove that if a normal extension K/Q is of prime degree, then every integer of K with zero trace is a difference of two conjugates of an algebraic integer in K if and only if there exists an integer of K with trace 1.
Publisher
Cambridge University Press (CUP)
Reference4 articles.
1. On numbers which are differences of two conjugates of an algebraic integer
2. [2] Dubickas A. and Smyth C.J. , ‘Variations on the theme of Hilbert's Theorem 90’, Glasgow Math. J. (to appear).
3. Selected Topics on Polynomials
Cited by
3 articles.
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