An algebraic integer is said large if all its real or complex embeddings have absolute value larger than 1. An integral ideal is said large if it admits a large generator. We investigate the notion of largeness, relating it to some arithmetic invariants of the field involved, such as the regulator and the covering radius of the lattice of units. We also study its connection with the Weil height and the Bogomolov property. We provide an algorithm for testing largeness and give some applications to the construction of floor functions arising in the theory of continued fractions.

Large algebraic integers

Terracini L.
2023-01-01

Abstract

An algebraic integer is said large if all its real or complex embeddings have absolute value larger than 1. An integral ideal is said large if it admits a large generator. We investigate the notion of largeness, relating it to some arithmetic invariants of the field involved, such as the regulator and the covering radius of the lattice of units. We also study its connection with the Weil height and the Bogomolov property. We provide an algorithm for testing largeness and give some applications to the construction of floor functions arising in the theory of continued fractions.
2023
19
09
2197
2214
Number fields; largeness; unit lattices; covering radius; Weil height; algorithm; regulator; floor functions
Simon D.; Terracini L.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1933050
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