oliver knill
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Wilson: (n-1)!+1 = 0 mod n <=> n prime Fermat: a^n-a=0 mod n for all a if n is prime Carmichael Fermat pseudo primes -> Miller-Rabin Laisand-Beujeux (1879): B(p-1,k)=(-1)^k mod p for k=(p-1)/2 and prime p t.co/0xQoV2Aw5k (Maheswara Valluri) Is 5907 only L-B pseudo prime? t.co/dnS9A3wBNG
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One of the greatest mathematicians of our time died yesterday: t.co/qq99mjWvth An older longer insightful interview with Michael Atiyah was just published on youtube t.co/YU6QpYkHjj where also his discoveries with Singer are discussed. t.co/sgSlCUK2TR
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My running route passes close to a golf course ... How come Kepler always comes to mind? t.co/hbm5lXZeKA
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New largest prime found t.co/UYm8Ivj33g Interesting is the local linear growth the last 12 entries with different slope than the overall linear growth of log(p(k)), where p(k) is the k'th known Mersenne prime. They still grow slower than expected if looking at regression. t.co/BOAYCNjmBo
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Discrete Calculus: t.co/x6Qjxp6aZh via @YouTube
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Three Dimensional Torus in Four Dimensional Space: t.co/3UMgGs1nTS via @YouTube
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Screenshot from the movie Arrival. Obviously, the linguistists use Mathematica to analyze the alien language. t.co/pZnHQlsSKU
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Fast Multiplication: t.co/YiULo4c2tk via @YouTube
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Starbucks on Church street in Cambridge just closed. Sad, as this was a friendly place, where one had not to wait too long and usually also had space to quickly sit down. I had spent many productive hours there. Coffee shop density near the square is big, but will be more busy. t.co/FsSFnF479M
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The last couple of weeks, there had been a beautiful triangular exhibit on the Science center Plazza. The structure reminds a bit of a Toblerone chocolate t.co/lXsIkx0DRP Here is the story in the gazette t.co/R02HmqSpBH t.co/vsffKTu7nv
