Ingleton's theorem and the Axiom of Choice - Université de La Réunion
Communication Dans Un Congrès Année : 2018

Ingleton's theorem and the Axiom of Choice

Résumé

Ingleton's theorem, a p-adic analog of Hahn-Banach's theorem, states that given a spherically complete ultrametric valued field K, and an ultrametric semi-norm p on a K-vector space E, any linear form f defined on a vector subspace V of E such that |f|≤ p can be extended into a linear form f̃ which is defined on E and such that |f̃| ≤ p. In his paper "The Axiom of Choice in p-adic functional analysis" (Lecture Notes in Pure and Appl. Math., 137, Dekker, New York, 1992), A.C.M. van Rooij studied Ingleton's statement in set-theory without the Axiom of Choice and asked several questions. We propose some additional results to this topic.
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Dates et versions

hal-04553635 , version 1 (21-04-2024)

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  • HAL Id : hal-04553635 , version 1

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Marianne Morillon. Ingleton's theorem and the Axiom of Choice. 33rd Summer Conference on Topology and its Applications, Western Kentucky University Bowling Green, Kentucky, USA, Jul 2018, Bowling Green (Kentucky), United States. ⟨hal-04553635⟩
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