5 ms·
There's a backstory to this paper from the r/math subreddit [1]. One of the authors initially posted the question there, and stumbling upon a similar question o
by bhl 7y ago
There's a backstory to this paper from the r/math subreddit [1]. One of the authors initially posted the question there, and stumbling upon a similar question on math overflow emailed Terry Tao. And surprisingly, he responded.
[1] https://www.reddit.com/r/math/comments/ci665j/linear_algebra_question_from_a_physicist/ https://www.reddit.com/r/math/comments/ci665j/linear_algebra...
- james_s_tayler 7y agoWow. This is so great.
- leereeves 7y agoNot only responded, but responded in under 2 hours, which is amazing from a busy professor like Tao.
- bcaa7f3a8bbc 7y ago> responded in under 2 hours and gave 3 different proofs!
- mkl 7y agoNot only responded in under 2 hours, but "Tao’s reply also included three independent proofs of the identity." From the article we discussed earlier, https://www.quantamagazine.org/neutrinos-lead-to-unexpected-discovery-in-basic-math-20191113/ https://www.quantamagazine.org/neutrinos-lead-to-unexpected-... https://news.ycombinator.com/item?id=21528425 https://news.ycombinator.com/item?id=21528425
- blt 7y agoit indicates how important this result is!
- dmix 7y agoSomeone replied: > Apparently this relationship was discovered in 2014 by a dutch mathematician or physician. https://arxiv.org/abs/1401.4580 https://arxiv.org/abs/1401.4580 https://old.reddit.com/r/math/comments/ci665j/linear_algebra_question_from_a_physicist/f7j2s2t/ https://old.reddit.com/r/math/comments/ci665j/linear_algebra... I don't know anything about the subject, I'm curious what they mean by that.
- consp 7y agoHe is a professor of telecommunication networks at the Delft University of Technology. see https://www.tudelft.nl/staff/p.f.a.vanmieghem/ https://www.tudelft.nl/staff/p.f.a.vanmieghem/ edit: The apperantly renamed it Network Architecture & Services since I finished my education.
- teilo 7y agoDiscovered, sort of. His method was nearly the same as the one brought to Tao, but he didn't make the connection to the full correlation between eigenvalues and eigenvectors when dealing with real numbers. Tao used the method to explicitly prove this correlation when it was discovered by Denton, Parke and Zhang.
- Ceezy 7y agoThat s great, but any good bachelor students should be able to give you a similar answer.