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Classic maths puzzle cracked at last (May lead to advances in particle physics & computer security)
NewScientist.com news service ^ | 03/21/2005 | Maggie McKee

Posted on 03/25/2005 8:50:03 AM PST by bedolido

A number puzzle originating in the work of self-taught maths genius Srinivasa Ramanujan nearly a century ago has been solved. The solution may one day lead to advances in particle physics and computer security.

Karl Mahlburg, a graduate student at the University of Wisconsin in Madison, US, has spent a year putting together the final pieces to the puzzle, which involves understanding patterns of numbers.

"I have filled notebook upon notebook with calculations and equations," says Mahlburg, who has submitted a 10-page paper of his results to the Proceedings of the National Academy of Sciences.

The patterns were first discovered by Ramanujan, who was born in India in 1887 and flunked out of college after just a year because he neglected his studies in subjects outside of mathematics.

But he was so passionate about the subject he wrote to mathematicians in England outlining his theories, and one realised his innate talent. Ramanujan was brought to England in 1914 and worked there until shortly before his untimely death in 1920 following a mystery illness.

Curious patterns Ramanujan noticed that whole numbers can be broken into sums of smaller numbers, called partitions. The number 4, for example, contains five partitions: 4, 3+1, 2+2, 1+1+2, and 1+1+1+1.

He further realised that curious patterns - called congruences - occurred for some numbers in that the number of partitions was divisible by 5, 7, and 11. For example, the number of partitions for any number ending in 4 or 9 is divisible by 5.

(Excerpt) Read more at newscientist.com ...


TOPICS: Culture/Society
KEYWORDS: classic; computer; cracked; imanexcellentdriver; maths; notaboutterri; particle; physics; puzzle; ramanujan; security
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To: farfromhome; hchutch

13 posts about Srinivasa Ramanujan and no whining about H1Bs...


21 posted on 03/25/2005 9:02:53 AM PST by Poohbah (If it's called "collateral damage," how come I can't use it to secure a loan?)
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To: bedolido

How is it a "puzzle"? It's a coincidence, or a feature of mathematics but what is so puzzling about it? Tell me why math has this feature, and then you will be on to something. The article alludes to "why" but doesn't spell it out, and I don't think that it is possible to say why prime numbers have this feature, that's just the way it is.


22 posted on 03/25/2005 9:02:58 AM PST by monkeyshine
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To: bedolido; Quix

-pong


23 posted on 03/25/2005 9:03:22 AM PST by maestro
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To: bedolido

Interesting, Thanks.


24 posted on 03/25/2005 9:03:35 AM PST by DoctorMichael (The Fourth Estate is a Fifth Column!!!!!!!!!!!!!!!!!!!)
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To: Larry Lucido

When I first tried to post my message, I got an error message saying FreeRepublic couldn't be reached, so I resent it, and sure enough they both turned up!


25 posted on 03/25/2005 9:03:37 AM PST by governsleastgovernsbest (Watching the Today Show since 2002 so you don't have to.)
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To: bedolido; MadIvan

Why do the British call it "maths" instead of "math"? What's plural about it? Generally, you're only engaging on one kind of math - algebra, geometry, calculus, trigonometry.


26 posted on 03/25/2005 9:03:55 AM PST by Xenalyte (I am at Dr. Venture's lab to right that which is wrong and to repair the torn curtain of time itself)
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To: bedolido

Cool.


27 posted on 03/25/2005 9:04:57 AM PST by The Ghost of FReepers Past (Legislatures are so outdated. If you want real political victory, take your issue to court.)
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To: governsleastgovernsbest
See #5 - that's how the English say it.

I'm puzzled why they don't speak English...

28 posted on 03/25/2005 9:05:10 AM PST by Drango (All my ideas, good or bad, are stolen from other FReepers)
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To: MacDorcha

Stop - my head is starting to hurt!


29 posted on 03/25/2005 9:05:23 AM PST by governsleastgovernsbest (Watching the Today Show since 2002 so you don't have to.)
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To: governsleastgovernsbest
And if they don't like it, well, they can just stuff it in the "boot" of their car!

And let us not forget their wonderful cuisine: bangers, spotted dick, and steak and kidney pie.

30 posted on 03/25/2005 9:05:41 AM PST by Ignatz (Some days it's not worth arguing with the voices in my head.)
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To: RadioAstronomer
"Quantum Crytography"

Now the valley cried with anger; mount your horses, draw your sword,

and they killed the mountain people, so they won their just reward.

Now they stood beside the treasure on the mountain, dark and red,

turned the stone and looked beneath it. "Peace on earth" was all it said.

31 posted on 03/25/2005 9:05:45 AM PST by Deguello
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To: governsleastgovernsbest
so I resent it

Well, don't know if I'd go so far as to say I resented it, but I was ticked. :-)

32 posted on 03/25/2005 9:06:28 AM PST by Larry Lucido (We miss ya, Indie! Law Enforcement Against Prohibition - http://www.leap.cc)
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To: Deguello

Sad song from the 70s. I remember that one.


33 posted on 03/25/2005 9:06:58 AM PST by RadioAstronomer
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To: bedolido

bump.


34 posted on 03/25/2005 9:08:35 AM PST by spetznaz (Nuclear tipped ICBMs: The Ultimate Phallic Symbol.)
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To: bedolido
"Fascinating bump
35 posted on 03/25/2005 9:08:35 AM PST by amarok
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To: Larry Lucido

LOL


36 posted on 03/25/2005 9:08:36 AM PST by governsleastgovernsbest (Watching the Today Show since 2002 so you don't have to.)
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To: bedolido

Chemistry, mechanics, physics, STOCK MARKET... this stuff can go anywhere.


37 posted on 03/25/2005 9:08:50 AM PST by MacDorcha ("Do you want the e-mail copy or the fax?" "Just the fax, ma'am.")
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To: bedolido

I'm sending this article to SirSuziQ. He's a big math guy!


38 posted on 03/25/2005 9:09:26 AM PST by SuziQ
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To: Larry Lucido
Well, don't know if I'd go so far as to say I resented it, but I was ticked. :-)

I resemble that remark.

39 posted on 03/25/2005 9:10:08 AM PST by BureaucratusMaximus ("We're going to take things away from you on behalf of the common good" - Hillary Clinton)
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To: bedolido

Very nice. Congratulations to Mahlburg.


40 posted on 03/25/2005 9:10:28 AM PST by contemplator
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