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rjlipton.com
| | henrikwarne.com
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| | Before I read The Man from the Future by Ananyo Bhattacharya, I only knew about John von Neumann in two contexts: that computers use the von Neumann architecture, and that he appeared in a story about a mathematical problem I remember from many years ago. After reading it, I understand what a genius he was,...
| | micromath.wordpress.com
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| | Continuing the theme of alternative approaches to teaching calculus, I take the liberty of posting a letter sent by Donald Knuth to to the Notices of the American Mathematical Society in March, 1998 (TeX file). Professor Anthony W. Knapp P O Box 333 East Setauket, NY 11733 Dear editor, I am pleased to see so...
| | gilkalai.wordpress.com
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| | Topology Quasi-polynomial algorithms for telling if a knot is trivial Marc Lackenby announced a quasi-polynomial time algorithm to decide whether a given knot is the unknot! This is a big breakthrough. This question is known to be both in NP and in coNP. See this post, and updates there in the comment section. Topology seminar,...
| | markusmeister.com
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| I much enjoyed this book: "Models of the mind" by Grace Lindsay, an account of the uses of theory and mathematics in brain science. The book addresses the general reader, equations are mostly relegated to an appendix, and there are copious citations of technical literature as well. Obviously, conveying mathematics without equations is a challenge,...