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58 results from messages in primenumbers

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  • Hi, Le 2014-02-27 06:53, warren.wds@^$1 a écrit : > Yitang Zhang 2013 showed infinitely many prime pairs (p,q) exist > with |p-q|<=70000000. > Just saw lecture by Terence Tao. He says that James Maynard > (who'd reduced it to 600) has joined forces with the polymath8 team > and they now have it down to 252 and expected to fall further -- he > guesstimates they will stall at about...
    whygee@... Feb 26, 2014
  • Le 2014-01-13 20:12, Bob Gilson a écrit : > It's interesting that the most recent progress in reducing the bounded > gaps for primes has been > > 4680 Polymath Project > 600 James Maynard > 270 Polymath Project > > All these gaps are divisible by 30, and as David Broadhurst confirmed > but could not prove, any number wholly divisible by 30, including 30, > can be broken down into...
    whygee@... Jan 13, 2014
  • Hello, Le 2013-11-30 03:57, Alberto Zelaya a écrit : > Based on this equivalence we can draw a system of sieves for the > 6n+/-1 set up to 100. One question : why 100, is it an arbitrary value and if so, how did you choose it ? > To morrow I will continue with this explanation. Please do. > Alberto Zelaya YG
    whygee@... Nov 29, 2013
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  • Hello list, I finally have some time off and I'm returning to my analysis of prime gaps with the angle of certain wheel sieves. The beginning is here, please have a look : http://ygdes.com/~whygee/gaps_20131126.html I'm pretty confident that this text is solid up to this point but I want to be sure it is error-free before I write more. Happy clicking ! yg
    whygee@... Nov 26, 2013
  • Le 2013-08-31 01:06, djbroadhurst a écrit : > --- In primenumbers@^$1, Bob Gilson > wrote: >> >> I noticed that the sequence of even numbers 30,,60,90,120,150,180 >> ... has some strange properties. >> >> 30 has two partitions 13:17 and 11:19, which gives the Twin Primes >> 11,13 and 17,19 >> 60 has two partitions 17:43 and 19:41, which gives the Twin Primes >> 17,19 and 41,43...
    whygee@... Aug 30, 2013
  • Hallo, Le 2013-07-25 18:37, Alexander a écrit : > Let us have a look at the polynomial P=n²-n+a. a=41 results in the > well-known Euler-formula, which produces 86 different prime numbers > for > n=1..100. The second-best a seems to be 27941 with 77 different > primes. > Two questions: > > 1) Is there a more efficient a (except 41)? > > 2) Is there another polynomial form which is...
    whygee@... Jul 25, 2013
  • Le 2013-06-25 19:17, John a écrit : I'll add another question : (8) What did we learn from this proof and what new insight has been gained ?
    whygee@... Jun 25, 2013
  • ...there by studying the transformations of the wheel Wp(n) to create Wp(n+1). This is where algorithms show up. In http://ygdes.com/~whygee/srs.html I have merged my algorithmic approach with the remarks made by Steve Maddox on this list http://tech.groups.yahoo.com...
    whygee@... Jun 4, 2013
  • Hello list, I just came across the cyclic sequence [12, 7, 4, 7, 4, 7, 12, 3] which is directly related to the well known sequence [6, 4, 2, 4, 2, 4, 6, 2] ( http://oeis.org/A145011 ) but I don't see or find the first sequence in OEIS. In the next days I'll study certain properties of this sequence and its siblings. Has anybody seen it already ? How ? why ? when ? where ? Yann...
    whygee@... May 31, 2013
  • Le 2013-05-31 07:36, Phil Carmody a écrit : > And 32 sigmas on a single page - woh, that must be a record! 32 sigmas ? Wow ! we in the computer field struggle to reach 6 sigmas ;-) (though the LHC guys have between 5 and 7 sigmas on the Higgs boson) > Phil yg (still sieving...)
    whygee@... May 30, 2013