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Valuation Faible

Demetrios Stratigopoulos (1974)

Δελτίο της Ελληνικής Μαθηματικής Εταιρίας

Valuation Theory. Part I

Grzegorz Bancerek, Hidetsune Kobayashi, Artur Korniłowicz (2012)

Formalized Mathematics

In the article we introduce a valuation function over a field [1]. Ring of non negative elements and its ideal of positive elements have been also defined.

Valuations and asymptotic invariants for sequences of ideals

Mattias Jonsson, Mircea Mustaţă (2012)

Annales de l’institut Fourier

We study asymptotic jumping numbers for graded sequences of ideals, and show that every such invariant is computed by a suitable real valuation of the function field. We conjecture that every valuation that computes an asymptotic jumping number is necessarily quasi-monomial. This conjecture holds in dimension two. In general, we reduce it to the case of affine space and to graded sequences of valuation ideals. Along the way, we study the structure of a suitable valuation space.

Valuations in fields of power series.

Francisco Javier Herrera Govantes, Miguel Angel Olalla Acosta, José Luis Vicente Córdoba (2003)

Revista Matemática Iberoamericana

This paper deals with valuations of fields of formal meromorphic functions and their residue fields. We explicitly describe the residue fields of the monomial valuations. We also classify all the discrete rank one valuations of fields of power series in two and three variables, according to their residue fields. We prove that all our cases are possible and give explicit constructions.

Wallis entre Hobbes et Newton. La question de l’angle de contact chez les anglais

François Loget (2002)

Revue d'histoire des mathématiques

Cet article traite d’un aspect de la controverse qui a opposé Hobbes et Wallis dans la deuxième moitié du xviie siècle, celui portant sur l’angle de contact. Wallis a publié deux traités sur l’angle de contact, l’un en 1656, l’autre en 1685. Entre ces deux dates sa position sur la question de l’angle de contact a sensiblement évolué. Durant la même période, il s’est opposé à Hobbes sur divers sujets de mathématiques, dont l’angle de contact. J’étudie les positions des deux protagonistes à travers...

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