Arithmetic euclidean rings
De l’euclidianité de et pour la norme
Cet article a pour objectif de présenter un algorithme permettant de montrer, à l’aide d’un ordinateur, l’euclidianité pour la norme du sous-corps réel maximal du corps cyclotomique où , corps totalement réel de degré et de discriminant , et plus précisément de prouver que . La méthode utilisée permet par ailleurs de prouver que pour , on a également (conjecture de H. Cohn et J. Deutsch). Les résultats relatifs à ce cas sont exposés en fin d’article.
Euclidean quadratic forms and ADC forms: I
Euclidean quadratic forms and ADC forms II: integral forms
We study ADC quadratic forms and Euclidean quadratic forms over the integers, obtaining complete classification results in the positive case.
Euclidean rings of affine curves.
Euclid's algorithm in algebraic function fields, II
On A Problem Of Samuel
On Euclidean Algorithms With Some Particular Properties
On the S-Euclidean minimum of an ideal class
We show that the S-Euclidean minimum of an ideal class is a rational number, generalizing a result of Cerri. In the proof, we actually obtain a slight refinement of this and give some corollaries which explain the relationship of our results with Lenstra's notion of a norm-Euclidean ideal class and the conjecture of Barnes and Swinnerton-Dyer on quadratic forms. In particular, we resolve a conjecture of Lenstra except when the S-units have rank one. The proof is self-contained but uses ideas from...
Rings with a theory of gretest common divisors.
Totally indefinite Euclidean quaternion fields
We study the Euclidean property for totally indefinite quaternion fields. In particular, we establish a complete list of norm-Euclidean such fields over imaginary quadratic number fields. This enables us to exhibit an example which gives a negative answer to a question asked by Eichler. The proofs are both theoretical and algorithmic.
Un type d'euclidienneté dans les anneaux factoriels, réduction d'euclidienneté