At the heart of the issue is a feature by mathematician Gérard Cohen-Zardi devoted to "filling in the gaps" in the last letter Galois wrote before his fatal duel. It took nearly a year of painstaking work to reconstruct the approach followed by the young prodigy in this letter: intermediate calculations, incomplete statements, unfinished arguments... Galois did not have time to leave us every detail!
This issue of Tangente Sup explores some of the avenues opened up by Galois theory in modern mathematics. A fascinating issue, as was the short feature that accompanied it in Tangente 142!
