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皮埃尔·勒内·德利涅子爵(法語:Vicomte Pierre René Deligne,英語:Pierre Deligne,1944年10月3日),比利时代数几何学者,20世纪中后期最知名的数学家之一。他最重要的贡献之一是20世纪70年代关于韦伊猜想英语Weil conjectures的工作。他也是大数学家亚历山大·格罗滕迪克的得意门生之一。



1968年他在格罗滕迪克指导下完成博士论文。1970年26岁的德利涅成为法國高等科學研究所教授。他在那里完成了关于霍奇理论韦伊猜想英语Weil conjectures的工作。格罗滕迪克很有信心按照自己提供的一套思路框架来逐步解决韦伊猜想,并借此证明其数学思想的威力,但是德利涅却另辟蹊径搞定了韦伊猜想。德利涅虽凭借这一成绩获得了菲尔兹奖,但是他也承认老师格罗滕迪克对此事并不满意[3]。格罗滕迪克的老搭档让-皮埃尔·塞尔则觉得韦伊猜想被解决是一件值得开心的事情[4]


2013年,德利涅在阿贝尔奖得奖采访中表示自己觉得导师的动机理论英语Motive (algebraic geometry)在今后10年内看不到有明显进展的迹象,但自己也做好了被打脸的准备[7]










  1. ^ Raussen 2013,第17-19页,摘录如下:“He was a little strange, with his shaved head, a very tall man.”
  2. ^ Raussen 2013,第17-19页,摘录如下:“I think that many other mathematicians would have thought that if you didn't know the answer, there wouldn’t be any point to speak to you. This was not his reaction at all. Very patiently he told me that... He was very open to people who were ignorant. I think that you should not ask him the same stupid question three times, but twice was all right.”
  3. ^ Raussen 2013,第17-19页,摘录如下:“I used a completely different idea. It is inspired by the work of Rankin and his work on automorphic forms. It still has a number of applications, but it did not realize the dream of Grothendieck. ... It would have been much nicer if his program had been realized. He did not think that there would be another way to do it. When he heard I had proved it, he felt I must have done this and that, which I hadn't. I think that’s the reason for the disappointment.”
  4. ^ Raussen 2013,第17-19页。
  5. ^ Raussen 2013,第20-22页,摘录如下:“In both places there are physicists, but I think the contact with them was more fruitful for me in Princeton than it was in Bures. In Princeton, there have been common seminars. One year was very intense, with both mathematicians and physicists participating. This was due mainly to the presence of Edward Witten. He has received the Fields Medal even though he is a physicist. When Witten asks me questions, it's always very interesting to try to answer them, but it can be frustrating as well.”
  6. ^ Raussen 2013,第20-22页,摘录如下:“Princeton is also bigger in the sense that it has not only maths and physics, but also the School of Historical Studies and the School of Social Sciences. There is no real scientific interaction with these Schools but it is pleasant to be able to go and hear a lecture about, for instance, ancient China.”
  7. ^ Raussen 2013,第22页,摘录如下:“Whether or not it's within reach in ten years, I have absolutely no idea; as it should be… but I would very much like to see progress in our understanding of motives. Which path to take and what are the correct questions, is very much in the air. Grothendieck's program relied on proving the existence of algebraic cycles with some properties. To me this looks hopeless, but I may be wrong.”
  8. ^ Raussen 2013,第21页,摘录如下:“For Grothendieck it was very clear: he once told me that mathematics is not a competition sport. Mathematicians are different and some will want to be the first, especially if they are working on very specific and difficult questions. For me it's more important to create tools and to understand the general picture.”
  9. ^ Raussen 2013,第22页,摘录如下:“In yet another direction, physicists regularly come up with unexpected conjectures, most often using completely illegal tools. But so far, whenever they have made a prediction, for instance a numerical prediction on the number of curves with certain properties on some surface - and these are big numbers, in the millions perhaps - they were right! Sometimes previous computations by mathematicians were not in accordance with what the physicists were predicting, but the physicists were right.”
  10. ^ Raussen 2013,第22页,摘录如下:“They have put their fingers on something really interesting, but we are, so far, unable to capture their intuition. Sometimes they make a prediction and we work out a very clumsy proof without real understanding. That is not how it should be. In one of the seminar programs that we had with the physicists at IAS, my wish was not to have to rely on Ed Witten but instead to be able to make conjectures myself. I failed! I did not understand enough of their picture to be able to do that, so I still have to rely on Witten to tell me what should be interesting.”
  11. ^ Official announcement ennoblement [官方宣布入选贵族]. Belgian Federal Public Service. 2006-07-18. (原始内容存档于30 October 2007) (英语).