Hello, i am sorry for my bad english, i am a french student in Paris Université Pierre et Marie Curie. First i precise my post is not a controversial one, i am reading "Récoltes et Semailles" by Alexandre Grothendieck, according to him Deligne is a great mathematician but he is also a plagiarist and i want to know an other point of view. Must Grothendieck's talk be moderated ? Is it just wrong ?
Don't hesitate to correct my english to help me to improve it.

