Hilbert's seventeenth problem -- A model theoretic proof

par Christian D'Elbée, Tingxiang Zou

lundi 20 nov. 2017, 10:00 → 11:30 Europe/Paris

405 (ENS Lyon)

In this presentation, we will introduce some basic notions and tools in model theory, which, together with some elementary facts about real algebra, will give us an easy proof of Hilbert's seventeenth problem.